id sid tid token lemma pos n296ww74p4s 1 1 the the DET n296ww74p4s 1 2 existence existence NOUN n296ww74p4s 1 3 of of ADP n296ww74p4s 1 4 small small ADJ n296ww74p4s 1 5 surface surface NOUN n296ww74p4s 1 6 discontinuities discontinuity NOUN n296ww74p4s 1 7 beneath beneath ADP n296ww74p4s 1 8 a a DET n296ww74p4s 1 9 turbulent turbulent ADJ n296ww74p4s 1 10 boundary boundary ADJ n296ww74p4s 1 11 layer layer NOUN n296ww74p4s 1 12 plays play VERB n296ww74p4s 1 13 a a DET n296ww74p4s 1 14 significant significant ADJ n296ww74p4s 1 15 role role NOUN n296ww74p4s 1 16 in in ADP n296ww74p4s 1 17 generating generate VERB n296ww74p4s 1 18 enhanced enhance VERB n296ww74p4s 1 19 wall wall NOUN n296ww74p4s 1 20 - - PUNCT n296ww74p4s 1 21 pressure pressure NOUN n296ww74p4s 1 22 fluctuations fluctuation NOUN n296ww74p4s 1 23 and and CCONJ n296ww74p4s 1 24 acoustic acoustic ADJ n296ww74p4s 1 25 radiation radiation NOUN n296ww74p4s 1 26 . . PUNCT n296ww74p4s 2 1 this this DET n296ww74p4s 2 2 study study NOUN n296ww74p4s 2 3 investigates investigate VERB n296ww74p4s 2 4 numerically numerically ADV n296ww74p4s 2 5 the the DET n296ww74p4s 2 6 aeroacoustics aeroacoustic NOUN n296ww74p4s 2 7 of of ADP n296ww74p4s 2 8 low low ADJ n296ww74p4s 2 9 - - PUNCT n296ww74p4s 2 10 mach mach NOUN n296ww74p4s 2 11 - - PUNCT n296ww74p4s 2 12 number number NOUN n296ww74p4s 2 13 flows flow VERB n296ww74p4s 2 14 over over ADP n296ww74p4s 2 15 small small ADJ n296ww74p4s 2 16 gaps gap NOUN n296ww74p4s 2 17 and and CCONJ n296ww74p4s 2 18 forward forward ADV n296ww74p4s 2 19 - - PUNCT n296ww74p4s 2 20 facing face VERB n296ww74p4s 2 21 steps step NOUN n296ww74p4s 2 22 using use VERB n296ww74p4s 2 23 large large ADJ n296ww74p4s 2 24 - - PUNCT n296ww74p4s 2 25 eddy eddy NOUN n296ww74p4s 2 26 simulation simulation NOUN n296ww74p4s 2 27 and and CCONJ n296ww74p4s 2 28 lighthill lighthill NOUN n296ww74p4s 2 29 's 's PART n296ww74p4s 2 30 aeroacoustic aeroacoustic ADJ n296ww74p4s 2 31 theory theory NOUN n296ww74p4s 2 32 . . PUNCT n296ww74p4s 3 1 the the DET n296ww74p4s 3 2 lighthill lighthill NOUN n296ww74p4s 3 3 's 's PART n296ww74p4s 3 4 equation equation NOUN n296ww74p4s 3 5 is be AUX n296ww74p4s 3 6 solved solve VERB n296ww74p4s 3 7 using use VERB n296ww74p4s 3 8 an an DET n296ww74p4s 3 9 approximate approximate ADJ n296ww74p4s 3 10 tailored tailor VERB n296ww74p4s 3 11 green green NOUN n296ww74p4s 3 12 's 's PART n296ww74p4s 3 13 function function NOUN n296ww74p4s 3 14 for for ADP n296ww74p4s 3 15 acoustically acoustically ADV n296ww74p4s 3 16 compact compact ADJ n296ww74p4s 3 17 gaps gap NOUN n296ww74p4s 3 18 and and CCONJ n296ww74p4s 3 19 steps step NOUN n296ww74p4s 3 20 , , PUNCT n296ww74p4s 3 21 and and CCONJ n296ww74p4s 3 22 a a DET n296ww74p4s 3 23 boundary boundary ADJ n296ww74p4s 3 24 - - PUNCT n296ww74p4s 3 25 element element NOUN n296ww74p4s 3 26 method method NOUN n296ww74p4s 3 27 to to PART n296ww74p4s 3 28 evaluate evaluate VERB n296ww74p4s 3 29 the the DET n296ww74p4s 3 30 effects effect NOUN n296ww74p4s 3 31 of of ADP n296ww74p4s 3 32 gap gap NOUN n296ww74p4s 3 33 / / SYM n296ww74p4s 3 34 step step NOUN n296ww74p4s 3 35 non non ADJ n296ww74p4s 3 36 - - ADJ n296ww74p4s 3 37 compactness compactness ADJ n296ww74p4s 3 38 and and CCONJ n296ww74p4s 3 39 free free ADJ n296ww74p4s 3 40 - - PUNCT n296ww74p4s 3 41 stream stream NOUN n296ww74p4s 3 42 convection convection NOUN n296ww74p4s 3 43 . . PUNCT n296ww74p4s 4 1 the the DET n296ww74p4s 4 2 objectives objective NOUN n296ww74p4s 4 3 of of ADP n296ww74p4s 4 4 this this DET n296ww74p4s 4 5 study study NOUN n296ww74p4s 4 6 are be AUX n296ww74p4s 4 7 to to PART n296ww74p4s 4 8 elucidate elucidate VERB n296ww74p4s 4 9 the the DET n296ww74p4s 4 10 acoustic acoustic ADJ n296ww74p4s 4 11 source source NOUN n296ww74p4s 4 12 mechanisms mechanism NOUN n296ww74p4s 4 13 and and CCONJ n296ww74p4s 4 14 the the DET n296ww74p4s 4 15 effects effect NOUN n296ww74p4s 4 16 of of ADP n296ww74p4s 4 17 flow flow NOUN n296ww74p4s 4 18 and and CCONJ n296ww74p4s 4 19 geometric geometric ADJ n296ww74p4s 4 20 parameters parameter NOUN n296ww74p4s 4 21 including include VERB n296ww74p4s 4 22 the the DET n296ww74p4s 4 23 step step NOUN n296ww74p4s 4 24 / / SYM n296ww74p4s 4 25 gap gap NOUN n296ww74p4s 4 26 size size NOUN n296ww74p4s 4 27 , , PUNCT n296ww74p4s 4 28 shape shape NOUN n296ww74p4s 4 29 and and CCONJ n296ww74p4s 4 30 orientation orientation NOUN n296ww74p4s 4 31 . . PUNCT n296ww74p4s 5 1 in in ADP n296ww74p4s 5 2 the the DET n296ww74p4s 5 3 gap gap NOUN n296ww74p4s 5 4 flows flows AUX n296ww74p4s 5 5 considered consider VERB n296ww74p4s 5 6 , , PUNCT n296ww74p4s 5 7 it it PRON n296ww74p4s 5 8 is be AUX n296ww74p4s 5 9 found find VERB n296ww74p4s 5 10 that that SCONJ n296ww74p4s 5 11 the the DET n296ww74p4s 5 12 maximum maximum ADJ n296ww74p4s 5 13 surface surface NOUN n296ww74p4s 5 14 pressure pressure NOUN n296ww74p4s 5 15 fluctuations fluctuation NOUN n296ww74p4s 5 16 , , PUNCT n296ww74p4s 5 17 which which PRON n296ww74p4s 5 18 increase increase VERB n296ww74p4s 5 19 with with ADP n296ww74p4s 5 20 the the DET n296ww74p4s 5 21 gap gap NOUN n296ww74p4s 5 22 width width NOUN n296ww74p4s 5 23 and and CCONJ n296ww74p4s 5 24 trailing trailing ADJ n296ww74p4s 5 25 - - PUNCT n296ww74p4s 5 26 edge edge NOUN n296ww74p4s 5 27 height height NOUN n296ww74p4s 5 28 , , PUNCT n296ww74p4s 5 29 occur occur VERB n296ww74p4s 5 30 at at ADP n296ww74p4s 5 31 the the DET n296ww74p4s 5 32 trailing trail VERB n296ww74p4s 5 33 edge edge NOUN n296ww74p4s 5 34 of of ADP n296ww74p4s 5 35 the the DET n296ww74p4s 5 36 gap gap NOUN n296ww74p4s 5 37 or or CCONJ n296ww74p4s 5 38 near near ADP n296ww74p4s 5 39 the the DET n296ww74p4s 5 40 reattachment reattachment NOUN n296ww74p4s 5 41 point point NOUN n296ww74p4s 5 42 if if SCONJ n296ww74p4s 5 43 there there PRON n296ww74p4s 5 44 is be VERB n296ww74p4s 5 45 separation separation NOUN n296ww74p4s 5 46 from from ADP n296ww74p4s 5 47 the the DET n296ww74p4s 5 48 trailing trail VERB n296ww74p4s 5 49 edge edge NOUN n296ww74p4s 5 50 . . PUNCT n296ww74p4s 6 1 the the DET n296ww74p4s 6 2 downstream downstream ADJ n296ww74p4s 6 3 recovery recovery NOUN n296ww74p4s 6 4 towards towards ADP n296ww74p4s 6 5 an an DET n296ww74p4s 6 6 equilibrium equilibrium NOUN n296ww74p4s 6 7 boundary boundary ADJ n296ww74p4s 6 8 layer layer NOUN n296ww74p4s 6 9 is be AUX n296ww74p4s 6 10 significantly significantly ADV n296ww74p4s 6 11 faster fast ADV n296ww74p4s 6 12 compared compare VERB n296ww74p4s 6 13 to to ADP n296ww74p4s 6 14 the the DET n296ww74p4s 6 15 boundary boundary ADJ n296ww74p4s 6 16 layers layer NOUN n296ww74p4s 6 17 perturbed perturb VERB n296ww74p4s 6 18 by by ADP n296ww74p4s 6 19 a a DET n296ww74p4s 6 20 single single ADJ n296ww74p4s 6 21 forward forward ADJ n296ww74p4s 6 22 step step NOUN n296ww74p4s 6 23 , , PUNCT n296ww74p4s 6 24 and and CCONJ n296ww74p4s 6 25 the the DET n296ww74p4s 6 26 recovery recovery NOUN n296ww74p4s 6 27 distance distance NOUN n296ww74p4s 6 28 scales scale VERB n296ww74p4s 6 29 with with ADP n296ww74p4s 6 30 the the DET n296ww74p4s 6 31 reattachment reattachment NOUN n296ww74p4s 6 32 length length NOUN n296ww74p4s 6 33 for for ADP n296ww74p4s 6 34 gaps gap NOUN n296ww74p4s 6 35 with with ADP n296ww74p4s 6 36 trailing trail VERB n296ww74p4s 6 37 - - PUNCT n296ww74p4s 6 38 edge edge NOUN n296ww74p4s 6 39 separation separation NOUN n296ww74p4s 6 40 . . PUNCT n296ww74p4s 7 1 the the DET n296ww74p4s 7 2 radiated radiate VERB n296ww74p4s 7 3 sound sound NOUN n296ww74p4s 7 4 field field NOUN n296ww74p4s 7 5 is be AUX n296ww74p4s 7 6 dominated dominate VERB n296ww74p4s 7 7 by by ADP n296ww74p4s 7 8 the the DET n296ww74p4s 7 9 forward forward ADV n296ww74p4s 7 10 - - PUNCT n296ww74p4s 7 11 facing face VERB n296ww74p4s 7 12 step step NOUN n296ww74p4s 7 13 in in ADP n296ww74p4s 7 14 the the DET n296ww74p4s 7 15 gap gap NOUN n296ww74p4s 7 16 if if SCONJ n296ww74p4s 7 17 it it PRON n296ww74p4s 7 18 is be AUX n296ww74p4s 7 19 exposed expose VERB n296ww74p4s 7 20 to to ADP n296ww74p4s 7 21 oncoming oncoming ADJ n296ww74p4s 7 22 turbulence turbulence NOUN n296ww74p4s 7 23 . . PUNCT n296ww74p4s 8 1 a a DET n296ww74p4s 8 2 mixed mixed ADJ n296ww74p4s 8 3 scaling scaling NOUN n296ww74p4s 8 4 using use VERB n296ww74p4s 8 5 both both DET n296ww74p4s 8 6 backwardand backwardand NOUN n296ww74p4s 8 7 forward forward ADJ n296ww74p4s 8 8 - - PUNCT n296ww74p4s 8 9 step step NOUN n296ww74p4s 8 10 heights height NOUN n296ww74p4s 8 11 as as SCONJ n296ww74p4s 8 12 length length NOUN n296ww74p4s 8 13 scales scale NOUN n296ww74p4s 8 14 has have AUX n296ww74p4s 8 15 been be AUX n296ww74p4s 8 16 found find VERB n296ww74p4s 8 17 to to PART n296ww74p4s 8 18 collapse collapse VERB n296ww74p4s 8 19 the the DET n296ww74p4s 8 20 sound sound ADJ n296ww74p4s 8 21 pressure pressure NOUN n296ww74p4s 8 22 spectra spectra NOUN n296ww74p4s 8 23 for for ADP n296ww74p4s 8 24 wide wide ADJ n296ww74p4s 8 25 gaps gap NOUN n296ww74p4s 8 26 with with ADP n296ww74p4s 8 27 different different ADJ n296ww74p4s 8 28 forward forward ADJ n296ww74p4s 8 29 step step NOUN n296ww74p4s 8 30 heights height NOUN n296ww74p4s 8 31 . . PUNCT n296ww74p4s 9 1 for for ADP n296ww74p4s 9 2 narrow narrow ADJ n296ww74p4s 9 3 and and CCONJ n296ww74p4s 9 4 symmetric symmetric ADJ n296ww74p4s 9 5 gaps gap NOUN n296ww74p4s 9 6 , , PUNCT n296ww74p4s 9 7 destructive destructive ADJ n296ww74p4s 9 8 interference interference NOUN n296ww74p4s 9 9 of of ADP n296ww74p4s 9 10 the the DET n296ww74p4s 9 11 sound sound NOUN n296ww74p4s 9 12 from from ADP n296ww74p4s 9 13 leading lead VERB n296ww74p4s 9 14 and and CCONJ n296ww74p4s 9 15 trailing trail VERB n296ww74p4s 9 16 edges edge NOUN n296ww74p4s 9 17 causes cause VERB n296ww74p4s 9 18 a a DET n296ww74p4s 9 19 significant significant ADJ n296ww74p4s 9 20 decline decline NOUN n296ww74p4s 9 21 in in ADP n296ww74p4s 9 22 the the DET n296ww74p4s 9 23 low low ADJ n296ww74p4s 9 24 - - PUNCT n296ww74p4s 9 25 frequency frequency NOUN n296ww74p4s 9 26 content content NOUN n296ww74p4s 9 27 . . PUNCT n296ww74p4s 10 1 the the DET n296ww74p4s 10 2 effects effect NOUN n296ww74p4s 10 3 of of ADP n296ww74p4s 10 4 gap gap NOUN n296ww74p4s 10 5 acoustic acoustic ADJ n296ww74p4s 10 6 non non ADJ n296ww74p4s 10 7 - - ADJ n296ww74p4s 10 8 compactness compactness ADJ n296ww74p4s 10 9 and and CCONJ n296ww74p4s 10 10 free free ADJ n296ww74p4s 10 11 - - PUNCT n296ww74p4s 10 12 stream stream NOUN n296ww74p4s 10 13 convection convection NOUN n296ww74p4s 10 14 are be AUX n296ww74p4s 10 15 found find VERB n296ww74p4s 10 16 to to PART n296ww74p4s 10 17 be be AUX n296ww74p4s 10 18 negligible negligible ADJ n296ww74p4s 10 19 at at ADP n296ww74p4s 10 20 the the DET n296ww74p4s 10 21 typical typical ADJ n296ww74p4s 10 22 hydroacoustic hydroacoustic ADJ n296ww74p4s 10 23 mach mach NOUN n296ww74p4s 10 24 number number NOUN n296ww74p4s 10 25 of of ADP n296ww74p4s 10 26 0.01 0.01 NUM n296ww74p4s 10 27 , , PUNCT n296ww74p4s 10 28 but but CCONJ n296ww74p4s 10 29 become become VERB n296ww74p4s 10 30 significant significant ADJ n296ww74p4s 10 31 at at ADP n296ww74p4s 10 32 mach mach NOUN n296ww74p4s 10 33 numbers number NOUN n296ww74p4s 10 34 as as ADV n296ww74p4s 10 35 low low ADJ n296ww74p4s 10 36 as as ADP n296ww74p4s 10 37 0.1 0.1 NUM n296ww74p4s 10 38 and and CCONJ n296ww74p4s 10 39 moderately moderately ADV n296ww74p4s 10 40 high high ADJ n296ww74p4s 10 41 frequencies frequency NOUN n296ww74p4s 10 42 . . PUNCT n296ww74p4s 11 1 flow flow VERB n296ww74p4s 11 2 over over ADP n296ww74p4s 11 3 forward forward ADV n296ww74p4s 11 4 - - PUNCT n296ww74p4s 11 5 facing face VERB n296ww74p4s 11 6 steps step NOUN n296ww74p4s 11 7 is be AUX n296ww74p4s 11 8 considered consider VERB n296ww74p4s 11 9 to to PART n296ww74p4s 11 10 investigate investigate VERB n296ww74p4s 11 11 the the DET n296ww74p4s 11 12 effects effect NOUN n296ww74p4s 11 13 of of ADP n296ww74p4s 11 14 step step NOUN n296ww74p4s 11 15 orientation orientation NOUN n296ww74p4s 11 16 and and CCONJ n296ww74p4s 11 17 corner corner NOUN n296ww74p4s 11 18 rounding round VERB n296ww74p4s 11 19 . . PUNCT n296ww74p4s 12 1 for for ADP n296ww74p4s 12 2 swept swept ADJ n296ww74p4s 12 3 steps step NOUN n296ww74p4s 12 4 , , PUNCT n296ww74p4s 12 5 it it PRON n296ww74p4s 12 6 is be AUX n296ww74p4s 12 7 found find VERB n296ww74p4s 12 8 that that SCONJ n296ww74p4s 12 9 the the DET n296ww74p4s 12 10 sweep sweep NOUN n296ww74p4s 12 11 independence independence NOUN n296ww74p4s 12 12 hypothesis hypothesis NOUN n296ww74p4s 12 13 holds hold VERB n296ww74p4s 12 14 for for ADP n296ww74p4s 12 15 mean mean NOUN n296ww74p4s 12 16 flow flow NOUN n296ww74p4s 12 17 quantities quantity NOUN n296ww74p4s 12 18 for for ADP n296ww74p4s 12 19 sweep sweep NOUN n296ww74p4s 12 20 angles angle VERB n296ww74p4s 12 21 up up ADP n296ww74p4s 12 22 to to ADP n296ww74p4s 12 23 45 45 NUM n296ww74p4s 12 24 ? ? NUM n296ww74p4s 12 25 , , PUNCT n296ww74p4s 12 26 and and CCONJ n296ww74p4s 12 27 for for ADP n296ww74p4s 12 28 fluctuating fluctuate VERB n296ww74p4s 12 29 quantities quantity NOUN n296ww74p4s 12 30 including include VERB n296ww74p4s 12 31 surface surface NOUN n296ww74p4s 12 32 pressure pressure NOUN n296ww74p4s 12 33 fluctuations fluctuation NOUN n296ww74p4s 12 34 and and CCONJ n296ww74p4s 12 35 reynolds reynold NOUN n296ww74p4s 12 36 stresses stress NOUN n296ww74p4s 12 37 for for ADP n296ww74p4s 12 38 sweep sweep NOUN n296ww74p4s 12 39 angles angle VERB n296ww74p4s 12 40 up up ADP n296ww74p4s 12 41 to to ADP n296ww74p4s 12 42 30 30 NUM n296ww74p4s 12 43 ? ? PUNCT n296ww74p4s 12 44 . . PUNCT n296ww74p4s 13 1 the the DET n296ww74p4s 13 2 sound sound ADJ n296ww74p4s 13 3 pressure pressure NOUN n296ww74p4s 13 4 spectra spectra NOUN n296ww74p4s 13 5 also also ADV n296ww74p4s 13 6 exhibit exhibit VERB n296ww74p4s 13 7 approximate approximate ADJ n296ww74p4s 14 1 sweep sweep VERB n296ww74p4s 14 2 independence independence NOUN n296ww74p4s 14 3 for for ADP n296ww74p4s 14 4 sweep sweep NOUN n296ww74p4s 14 5 angles angle VERB n296ww74p4s 14 6 up up ADP n296ww74p4s 14 7 to to ADP n296ww74p4s 14 8 30 30 NUM n296ww74p4s 14 9 ? ? PUNCT n296ww74p4s 14 10 . . PUNCT n296ww74p4s 15 1 rouding roude VERB n296ww74p4s 15 2 the the DET n296ww74p4s 15 3 step step NOUN n296ww74p4s 15 4 upper upper ADJ n296ww74p4s 15 5 corner corner NOUN n296ww74p4s 15 6 is be AUX n296ww74p4s 15 7 shown show VERB n296ww74p4s 15 8 to to PART n296ww74p4s 15 9 cause cause VERB n296ww74p4s 15 10 reduced reduced ADJ n296ww74p4s 15 11 flow flow NOUN n296ww74p4s 15 12 separation separation NOUN n296ww74p4s 15 13 on on ADP n296ww74p4s 15 14 the the DET n296ww74p4s 15 15 upper upper ADJ n296ww74p4s 15 16 surface surface NOUN n296ww74p4s 15 17 , , PUNCT n296ww74p4s 15 18 increased increase VERB n296ww74p4s 15 19 level level NOUN n296ww74p4s 15 20 of of ADP n296ww74p4s 15 21 peak peak ADJ n296ww74p4s 15 22 surface surface NOUN n296ww74p4s 15 23 pressure pressure NOUN n296ww74p4s 15 24 fluctuations fluctuation NOUN n296ww74p4s 15 25 and and CCONJ n296ww74p4s 15 26 faster fast ADV n296ww74p4s 15 27 downstream downstream ADJ n296ww74p4s 15 28 relaxation relaxation NOUN n296ww74p4s 15 29 to to ADP n296ww74p4s 15 30 an an DET n296ww74p4s 15 31 equilibrium equilibrium NOUN n296ww74p4s 15 32 turbulent turbulent ADJ n296ww74p4s 15 33 boundary boundary ADJ n296ww74p4s 15 34 layer layer NOUN n296ww74p4s 15 35 . . PUNCT n296ww74p4s 16 1 step step NOUN n296ww74p4s 16 2 rounding rounding NOUN n296ww74p4s 16 3 also also ADV n296ww74p4s 16 4 reduces reduce VERB n296ww74p4s 16 5 the the DET n296ww74p4s 16 6 sound sound ADJ n296ww74p4s 16 7 spectral spectral ADJ n296ww74p4s 16 8 level level NOUN n296ww74p4s 16 9 significantly significantly ADV n296ww74p4s 16 10 due due ADJ n296ww74p4s 16 11 largely largely ADV n296ww74p4s 16 12 to to ADP n296ww74p4s 16 13 reduced reduce VERB n296ww74p4s 16 14 surface surface NOUN n296ww74p4s 16 15 diffraction diffraction NOUN n296ww74p4s 16 16 effect effect NOUN n296ww74p4s 16 17 , , PUNCT n296ww74p4s 16 18 and and CCONJ n296ww74p4s 16 19 the the DET n296ww74p4s 16 20 reduction reduction NOUN n296ww74p4s 16 21 increases increase VERB n296ww74p4s 16 22 with with ADP n296ww74p4s 16 23 increasing increase VERB n296ww74p4s 16 24 rounding round VERB n296ww74p4s 16 25 radius radius NOUN n296ww74p4s 16 26 and and CCONJ n296ww74p4s 16 27 frequency frequency NOUN n296ww74p4s 16 28 . . PUNCT