It is found in many film-cooling experiments and computational analyses that a heated surface is employed to simulate the actual film-cooling condition with a cooling jet and a hot main flow. Considering that the dominant energy passage in turbine airfoil film cooling is always from the hot combustion gas flowing into the airfoil, employing a heated surface to simulate the actual film cooling c...

1st of november 2005 2 Contents 1 Introduction 1 2 Estimation of temperature gradients in laminar flow through a cylindrical pipe-the assumption of a linear change in wall temperature with axial distance 1 2.1 Temperature distribution in a pipe with circular cross-section assuming a linear wall temperature variation with distance. .. .. 2 3 A ray-tracing analysis of the flow-meter error in the ...

Molecular Dynamics Simulations of Heat Transfer in Nanoscale Liquid Films. (May 2009) Bo Hung Kim, B.A., Yonsei University; M.S., Texas A&M University Co-Chairs of Advisory Committee: Dr. Ali Beskok Dr. Tahir Cagin Molecular Dynamics (MD) simulations of nano-scale flows typically utilize fixed lattice crystal interactions between the fluid and stationary wall molecules. This approach cannot pro...

A novel method was developed for production, recovery, and purification of fungal glucosamine. Fungal glucosamine is a good candidate for replacement of glucosamine obtained from shellfish wastes. Mycelium of the Rhizopusoryzae was treated with hot sodium hydroxide solution to obtain the fungal cell wall skeleton. Phosphates were removed from the cell wall by cold dilute sulfuric acid treatment...

New exact solutions, obtained for centrifugal convection of a compressible fluid in pipes and annular pipes, explain axially elongated counterflow and energy separation—poorly understood phenomena occurring in vortex devices, e.g., hydrocyclones and Ranque tubes. Centrifugal acceleration ~which can be up to 10 times gravity in practical vortex tubes!, combined with an axial gradient of temperat...

Fungal cell wall assembly is a complicated process involving multiple enzymes and coordinated signaling pathways. The cell wall integrity MAPK pathway acts to stabilize the fungal cell wall during conditions of elevated temperature by regulation of glucan synthesis. The upstream kinase, BCK1, is a critical component of this pathway. Pneumonia is a significant cause of death from the fungal oppo...

Swm1p, a subunit of the APC cyclosome, was originally identified for its role in the later stages of the sporulation process and is required for spore wall assembly. In addition, this protein is required to maintain cell wall integrity in vegetative cells during growth at high temperature. Electron microscopy analyses of mutant cells grown at the restrictive temperature in the absence of osmoti...

G. W. Ao, M. G. Shen, Z. S. Zhang, B. L. Li: College of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan City, China Hollow side wall insulation mathematical model of unidirectional solidification temperature field was carried out. With the aid of finite element analysis software ProCAST, directionally solidified ingot temperature field with hollow lateral wall in...