Heat Transfer of the Critical Air Flow In a Nozzle : 1st Report; Numerical Study on Heat Transfer of the Critical Air Flow in a Nozzle with Parallel Walls

スポンサーリンク

概要

• 論文の詳細を見る

• The heat transfer of a critical flow in a small-sized nozzle has not been studied in detail, since the flow is too complicated. In this paper, the two-dimensional compressible laminar boundary layer equations in a parallel nozzle with heat transfer are solved numerically. The obtained results reveal that the two-dimensional critical flow patterns are classified by "nozzle characteristic number x_c". The local and mean heat transfer coefficients in the critical nozzles were calculated by defining an adiabatic wall temperature as gas temperature in reference. Especially, it is found that the local heat transfer coefficients rise sharply near the nozzle exit. The mean Nusselt numbers obtained numerically can be plotted on a single curve independent of the non-dimensional wall temperature θ_w, being arranged on the basis of "modified nozzle characteristic Reynolds number X_<cdw>"; furthermore they can be approximated by incompressible ones, if arranged on the basis of "X_<cdws>^<-1>" defined as the state of sonic point in the critical nozzle.

• 一般社団法人日本機械学会の論文

著者

• Kashiwagi Takao

  Department Of Mechanical Engineering For Production Tokyo Institute Of Technology

• Kurosaki Yasuo

  Tokyo Institute Of Technology

• ISSHIKI Naotsugu

  Tokyo Institute of Technology

関連論文

• A Fundamental Study of Fluidization and Heat Transfer Characteristics around a Horizontal Heated Circular Cylinder Immersed in a Fluidized Bed
• Heat Transfer of the Critical Air Flow in a Nozzle : 4th Report, The Flow and Heat Transfer Characteristics of an Accelerated Transonic Air Flow in a Divergent Nozzle
• Heat Transfer of the Critical Air Flow in a Nozzle : 3rd Report, Study on Heat Transfer of the Critical Air Flow in a Convergent Nozzle
• Heat Transfer of the Critical Air Flow In a Nozzle : 1st Report; Numerical Study on Heat Transfer of the Critical Air Flow in a Nozzle with Parallel Walls
• MHD Journal Bearing in a Magnetic Field Perpendicular to Its Axis : 2nd Report, Experiment with Mercury
• MHD Journal Bearing in a Magnetic Field Perpendicular to Its Axis : 1st Report, Analysis of an Infinitely Long Bearing
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part III, Distribution of Local Heat Transfer Coefficients
• Heat Transfer by Radiation and Other Transport Mechanisms : 3 rd Report, the Entrance Region of a Flow between Parallel Flat Plates with Simultaneous Radiation and Convection
• Coupled Heat and Mass Transfer in a Laminar Flow around a Flat Plate with a Uniform Heat Flux (the Transactions of the Japan Society of Mechanical Engineers) : Papers published in the Bulletin of the JSME are not included here
• Study on Oblique Grid Shadow Graph
• Transient Thermal Stress in Slab of which Surfaces are Heated by Heat Transfer
• Experimental Study of Steam Absorption Enhancement in Accordance with Interfacial Turbulence into Aqueous Solution of LiBr : The Influence of a Noncondensable Gas
• Numerical Analysis of Heat and Mass Transfer Enhancement Process Accompanying Interfacial Disturbance in Water Vapor Absorption
• Computer Simulation of Vapor-Absorption Enhancement into H_2O/LiBr Absorbent by Marangoni Convection
• Closed-Cycle Solid Sorption Refrigeration
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part II. Heat Transfer on the Stagnation Point
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : part I, Wind Penetration through Fabrics
• Analysis of Two-Dimensional Thermoelastic Problem in Doubly-Connected Region by Physical Analogy : Thermal Stress for a Solid with Hollow Square Profile
• A Theoretical Analysis and an Analogue Test of Two-Dimensional Thermal Stress : The Case When the Temperature of Boundaries for a Rectangular Cross Sectional Solid is Suddenly Changed
• Experiment Study on the Growth of Strain by Thermal Ratchet Mechanism
• The Experimental Study of Atmospheric Stirling Engines Using Pin-Fin Arrays' Heat Exchangers

もっと見る 閉じる

スポンサーリンク