Abstract: The two-layer concept is a framework for interpreting events and constructing mathematical models of turbulent wall layers. In this paper an asymptotic theory is constructed employing the idea ...

Abstract: This article reviews the literature on the theory of wall turbulence and the correlation of data from the viewpoint of composite expansions. As an interpretive tool, composite expansions have ...

Abstract: Wall-pressure fluctuations can be represented by a spectrum level that is a function of flow-direction wavenumber and frequnecy, Φ (k1 , ω). In the theory developed herein the frequency is ...

Abstract: Experiments were carried out to investigate the effect of reversing the heat flux direction during cooling on the formation of voids during the reflow process. Under different upward and downward ...

Abstract: Understanding the formation of voids in solder joints is important for predicting the long-term reliability of solder interconnects. This paper reports experimental research on the formation of ...

Abstract: This paper reports the experimental findings of void formation in eutectic and lead-free solder joints of flip-chip assemblies. A previous theory indicated that the formation of voids is determined ...

Abstract: A technique of controlling surface tension flows using thermal radiation is proposed. This method takes advantage of the dependence on temperature of the surface tension forces to produce the ...

Abstract: In this paper, we consider the flow in a journal bearing. The Sommerfeld approximate solution is well-known and is discussed in all lubrication texts (1-3). Perhaps less well-known is that an ...