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In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
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Data of compressible multi-material flow simulations utilizing an efficient bimaterial Riemann problem solver.

Wentao Ma1, Xuning Zhao1, Shafquat Islam1

  • 1Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24061, USA.

Data in Brief
|February 8, 2024
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Summary

This study presents simulation data and code for fluid dynamics, accelerating multi-material flow simulations with a novel Riemann problem solver. The data supports research in laser-induced cavitation and multiphase flow.

Keywords:
Compressible flowEquation of stateMulti-material flowMultiphase flowRiemann problem

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Area of Science:

  • Computational fluid dynamics
  • Multiphase flow physics
  • Numerical methods for fluid dynamics

Background:

  • Complex multi-material fluid simulations require efficient solvers for accurate results.
  • Existing methods struggle with strong discontinuities and diverse thermodynamic properties.
  • Laser-induced phenomena, like bubble nucleation, involve intricate multiphysics interactions.

Purpose of the Study:

  • To provide simulation data and source code for validating an accelerated bimaterial Riemann problem solver.
  • To enable replication of fluid dynamics simulations for benchmark and multiphysics test cases.
  • To facilitate further research in areas such as laser-induced cavitation and bubble dynamics.

Main Methods:

  • Developed and utilized an efficient bimaterial Riemann problem solver.
  • Applied the M2C solver, incorporating the accelerated Riemann solver, to solve 3D Eulerian Navier-Stokes equations.
  • Simulated two test cases: a 1D benchmark with large density jumps and a multiphysics case of laser-induced bubble nucleation in water.

Main Results:

  • Generated comprehensive simulation data including fluid pressure, velocity, density, laser radiance, and bubble dynamics.
  • Provided validated source codes (M2C solver and Riemann solver) for community use.
  • Successfully replicated complex fluid dynamics phenomena, including shock waves and phase transitions.

Conclusions:

  • The accelerated Riemann solver significantly enhances the efficiency of multi-material flow simulations.
  • The provided data and codes serve as valuable resources for researchers in computational fluid dynamics.
  • This work lays the foundation for advanced studies in laser-matter interactions and multiphase flow phenomena.