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Development of Weighted Residual Based Lattice Boltzmann Techniques for Fluid-Structure Interaction Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New computational techniques were developed for the analysis of fluid-structure interaction. The fluid flow was solved using the newly developed lattice Boltzmann methods, which could solve irregular ...
CFD Analysis of Thermally Stratified Flow and Conjugate Heat Transfer in a PWR Pressurizer Surgeline
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Temperature gradients in the thermally stratified fluid flowing through a pipe may cause undesirable excessive thermal stresses at the pipe wall in the axial, circumferential, and radial directions, ...
BEM Solution With Minimal Energy Technique for the Geometrical Inverse Heat Conduction Problem in a Doubly Connected Domain
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article addresses the use of boundary element method in conjunction with minimal energy technique for solving a geometrical inverse heat conduction problem. The problem considered in this ...
Numerical Analysis of Thermal Stratification in a Circular Pipe
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an effective numerical method for predicting the stratified flow in a horizontal circular pipe. The method employs a body-fitted, nonorthogonal grid system to accommodate the ...
Numerical Analysis of Unsteady Conjugate Heat Transfer and Thermal Stress for a Curved Piping System Subjected to Thermal Stratification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses three-dimensional numerical analyses of the unsteady conjugate heat transfer and thermal stress for a PWR pressurizer surge line pipe with a finite wall thickness, subjected ...
Numerical Calculation of Shear Stress Distribution on the Inner Wall Surface of CANDU Reactor Feeder Pipe Conveying Two-Phase Coolant
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two-phase flow fields inside feeder pipes of a CANada Deuterium Uranium (CANDU) reactor have been simulated numerically using a computational fluid dynamics (CFD) code to calculate the shear ...
Root Cause Analysis of SI Nozzle Thermal Sleeve Breakaway Failures Occurring at PWR Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: At conventional pressurized water reactors (PWRs), cold water stored in the refueling water tank of emergency core cooling system is injected into the primary coolant system through a safety ...
Numerical Simulation of Subcooled Flow Boiling Heat Transfer in Helical Tubes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses the numerical simulation of two-phase flow heat transfer in the helically coiled tubes of an integral type pressurized water reactor steam generator under normal operation ...