Nyob rau hauv dej dynamics, ib tug stagnation point yog ib tug taw tes nyob rau hauv ib tug khiav teb uas lub zos tshaj tawm ntawm cov dej yog xoom.
Yuav ua li cas yog txoj hauj lwm ntawm stagnation?
Kev piav qhia: Lub ntsiab lus stagnation txav mus rau sab qis ntawm lub tog raj kheej, zoo ib yam li cov theoretical ntws. Yog hais tias lub spin yog txaus nce lub stagnation point lifts tawm ntawm qhov chaw. Txoj hauj lwm ntawm stagnation point yog qhov muaj zog ntawm kev ncig, nrog xoom ncig stagnation point nyob ntawm xoom.
Puas siab ntawm qhov chaw stagnation zero?
Vim qhov nrawm ntawm qhov taw tes stagnation yog xoom, Lub stagnation lossis tag nrho cov siab, p_0, yog lub siab ntsuas ntawm qhov chaw uas cov kua dej los so. Nws yog qhov siab tshaj plaws pom nyob qhov twg hauv qhov chaw ntws, thiab nws tshwm sim ntawm qhov chaw stagnation.
Vim li cas qhov nrawm xoom ntawm qhov taw tes stagnation?
Raws li qhov ntws mus rau lub phaj nws qhov nrawm hloov pauv thiab qhov sib npaug Bernoulli qhia tias qhov no yuav cuam tshuam nrog kev hloov pauv. Raws li qhov chaw nruab nrab, qhov stagnation streamline, qhov kev nrawm nrawm txo mus rau xoom ntawmqhov chaw stagnation - taw tes ntawm kev sib tshuam ntawm txoj kab thiab qhov chaw.
kab stagnation yog dab tsi?
Cov kab stagnation pem hauv ntej yog ib qho kev ncua deb ntawm ntug kev; lub rear stagnation kab yog tib qhov deb ua ntej ntawm ntug trailing. Cov qauv airflow no ua rau tsis muaj nqa.
