Numerical Analysis of Transient Turbulent Flow in a Liquid Line

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概要

• 論文の詳細を見る

• Numerical calculations of a transient turbulent flow after instantaneous closure of a downstream valve is a single pipe line having an upstream reservoir are made by applying a previous method in which wall shear stress is evaluated from the cross-sectional distribution of instantaneous axial velocities. The variations of pressure, wall shear stress, and the cross-sectional distribution of axial velocities are shown schematically. Numerical analyses of a turbulent-laminar, a laminar, and a quasi-steady flow, and furthermore an analysis using an expression for wall shear stress reported previously are done. Thus calculated results of pressure are compared with experimental data. The critical condition in which analysis of laminar flow is applicable to the region of a transient turbulent flow is also presented.

• 一般社団法人日本機械学会の論文

著者

• OHMI Munekazu

  Faculty of Engineering, Osaka University

• USUI Tateo

  Faculty of Engineering, Osaka University

• Usui Tateo

  Faculty Of Engineering Osaka University

• Ohmi M

  Teikyo Univ. Utsunomiya Jpn

• Ohmi Munekazu

  Faculty Of Engineering Osaka University

• KYOMEN Susumu

  Kure National College of Technology

• Ohmi Munekazu

  Faculty Engineering Osaka University

関連論文

• Time-Dependent Wall Shear Stress in a Duct with Arbitrary Cross-Section
• Laminar-Turbulent Transition and Velocity Profiles of Oscillatory Rectangular Duct Flows
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 5, Wall Shear Stress and Flow Pattern in a Laminar Flow
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part l, Effect of Pulsating Frequency on the Turbulent Flow Pattern
• A Experimental Study of Velocity Distribution and Inlet Length in the Inlet Region of Laminar Oscillatory Pipe Flow : Series B : Fluid Engineering, Heat Transfer, Combustion, Power, Thermophysical, Properties
• Turbulent Slug and Velocity Field in the Inlet Region for Pulsatile Pipe Flow : Fluids Engineering
• Flow Patterns and Frictional Losses in an Oscillating Pipe Flow
• Transition to Turbulence in a Pulsatile Pipe Flow Part 1,Wave Forms and Distribution of Pulsatile Velocities near Transition Region
• Velocity Distribution and Reattachment Length in an Oscillatory Pipe Flow through a Plate Orifice
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 7 Wall Shear Stress in a Turbulent Flow
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 2, Effect of Pulsating Frequency on the Turbulent Frictional Losses
• Transition to Turbulence in a Pulsatile Pipe Flow : Part 2,Characteristics of Reversing Flow Accompanied by Relaminarization
• Critical Reynolds Number in an Oscillating Pipe Flow
• Free Oscillatory Flow Across a Plate Orifice in U-Shaped Tube and the Resistance Law
• Transition to Turbulence in a Pulsatile Pipe Flow : 3rd Report, Flow Regimes and the Conditions Describing the Generation and Decay of Turbulence
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 3, General Representation of Turbulent Flow Pattern
• Analysis of Free Oscillating Flow in a U-Shaped Tube
• Turbulence Structure in a Relatively Low Frequency Pulsatile Pipe Flow : Series B : Fluid Engineering, Heat Transfer, Combustion, Power, Thermophysical Properties
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 6 Frictional Losses In a Laminar Flow
• Loss Coefficients for Flows Through a Sudden Expansion and a Sudden Contraction Closely Placed : Series B : Fluid Engineering, Heat Transfer, Combustion, Power, Thermophysical Properties
• Experimental Study of Turbulence in a Pulsatile Pipe Flow
• Transition to Turbulence and Velocity Distribution in an Oscillating Pipe Flow
• Flow Pattern and Frictional Losses in Pulsating Pipe Flow : Part 4, General Representation of Turbulent Frictional Losses
• Pressure and Velocity Distributions in Pulsating Turbulent Pipe Flow Part 2 Experimental Investigations
• Combined Free and Forced Convection for Laminar Steady Flow in Horizontal Tubes
• Numerical Analysis of Transient Turbulent Flow in a Liquid Line
• Numerical Analysis of a Periodically Varying Flow in a Circular Tube Containing a Slightly Compressible Fluid
• Numerical Analysis of Pressure and Velocity Distributions for a Pulsating Turbulent Flow in a Circular Tube Containing a Slightly Compressible Fluid
• Analysis of Velocity Distribution in Pulsating Turbulent Pipe Flow with Time-Dependent Friction Velocity
• Pressure and Velocity Distributions in Pulsating Turbulent Pipe Flow Part 1 Theoretical Treatments
• Re-examination of method of kinetic analysis on the rate of stepwise reduction of a single sinter particle with CO-CO2-N2 gas mixture.

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