Investigation into the similarity solution for boundary layer flows in microsystems / Suhil Kiwan in Journal of heat transfer, Vol. 132 N° 4 (n° spécial) (Avril 2010)  

Public ISBD [article]  inJournal of heat transfer > Vol. 132 N° 4 (n° spécial) (Avril 2010) . - pp. [041011-1/9] Titre : Investigation into the similarity solution for boundary layer flows in microsystems Type de document : texte imprimé Auteurs : Suhil Kiwan, Auteur ; M. A. Al-Nimr, Auteur Article en page(s) : pp. [041011-1/9] Note générale : Physique Langues : Anglais (eng) Mots-clés : Similarity solution Stagnation surface Rarafied gaz Velocity slip parameter Temperature jump Index. décimale : 536 Chaleur. Thermodynamique Résumé : An investigation toward the existence of a complete similarity solution for boundary layer flows under the velocity slip and temperature jump conditions is carried out. The study is limited to the boundary layer flows resulting from an arbitrary freestream velocity U(x)=Uoxm and wall temperature given by Tw−T[infinity]=Cxn. It is found that a similar solution exists only for m=1 and n=0, which represents stagnation flow on isothermal surface. This case has been thoroughly investigated. The analysis showed that three parameters control the flow and heat transfer characteristics of the problem. These parameters are the velocity slip parameter K1, the temperature jump parameter K2, and Prandtl number. The effect of these parameters on the flow and heat transfer of the problem has been studied and presented. It is found that the slip velocity parameter affects both the flow and heat transfer characteristics of the problem. It is found that the skin friction coefficient decreases with increasing K1 and most of changes in the skin friction takes place in the range 0x-0.5(K1+1.279)−0.8 for 011.06)/(0.515+K11.06)](K2+1.489Pr−0.44)−1, for 0 DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Investigation into the similarity solution for boundary layer flows in microsystems [texte imprimé] / Suhil Kiwan, Auteur ; M. A. Al-Nimr, Auteur . - pp. [041011-1/9]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 4 (n° spécial) (Avril 2010) . - pp. [041011-1/9] Mots-clés : Similarity solution Stagnation surface Rarafied gaz Velocity slip parameter Temperature jump Index. décimale : 536 Chaleur. Thermodynamique Résumé : An investigation toward the existence of a complete similarity solution for boundary layer flows under the velocity slip and temperature jump conditions is carried out. The study is limited to the boundary layer flows resulting from an arbitrary freestream velocity U(x)=Uoxm and wall temperature given by Tw−T[infinity]=Cxn. It is found that a similar solution exists only for m=1 and n=0, which represents stagnation flow on isothermal surface. This case has been thoroughly investigated. The analysis showed that three parameters control the flow and heat transfer characteristics of the problem. These parameters are the velocity slip parameter K1, the temperature jump parameter K2, and Prandtl number. The effect of these parameters on the flow and heat transfer of the problem has been studied and presented. It is found that the slip velocity parameter affects both the flow and heat transfer characteristics of the problem. It is found that the skin friction coefficient decreases with increasing K1 and most of changes in the skin friction takes place in the range 0x-0.5(K1+1.279)−0.8 for 011.06)/(0.515+K11.06)](K2+1.489Pr−0.44)−1, for 0 DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

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