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Old   January 25, 2005, 09:45
Default Acoustic wave
Viktor Bessonov
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Uvagaemie gospoda,tovarishi ili kto sveduushii v etom voprose,ne mogli b vi bit tak dobri v pomoshi duraku studentu,a imenno: Kak budet izmenjatsja davlenie,pod vozdeistviem akustichiskoi (longitudinal-prodolnoi) sinusoidalnoi volni zadannoi chastoti,na "particle"(chastichku) v vode.Uchitivaja "viscous"(vjazkost) poteri soglasno naprimer zakonu Stoke's,temperaturnie i "structural"(strukturnie).Chastichka imeet plotnost priblizitelno odinakovuu s gidkost'u(vodoi),naprimer-neft,razmeri 10^(-6)metra,10^(-3)metra. Osobo inresno poterja davlenija na vihode.Poteri energii na otragenie(scattering) mogno prenebrech. Zaranee blagodaren za rassmotrenie dannogo voprosa.
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Old   January 28, 2005, 04:18
Default Re: Acoustic wave
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viktor, you`re looking for the change in liquid particle`s velocity in gas stream under action of sine acoustic wave; do I understood it corrcetly?
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Old   January 28, 2005, 05:16
Default Re: Acoustic wave
Viktor Bessonov
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Not completly !To be more presise,I'm looking for a particle of oil moving in water under electric sin. wave and acoustic sin. wave.I'm interested in all kinds of loses:viscous,scatering,thermal,structural.The expressinos for Forces on one particle,takinig into account only F(acoustic)+F(electric)-F(friction force,depending on Re number),but only 2D model only in x direction.It seems to me thats something conected with Bessel functions in math.,but my knowledges in this field are pretty poor. Will be happy if anyone can help or give me the e-net adress of such literature
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