Numerical simulation of three-dimensional supercritical water flows in hydrothermal synthesis reactors with Arbitrary geometry

Research output: Contribution to conferencePaperpeer-review

Abstract

Numerical simulations of mixing flows of supercritical (SC) water and water liquid in a 3-D T-shaped circular pipe and a 3-D cross pipe are conducted using the numerical method developed by our group. The 3-D geometry is generated by Building-Cube Method (BCM) with the stepwise wall treatment. Numerical results of mixing flows in the two pipes are compared and the effect of the inlet temperature is evaluated. In the T-shaped circular reactor, the mixing is periodic and a vortex is observed at the mixing point. The mixing form certainly depends on the SC water temperature. In the counter flow reactor, the SC water flow becomes unsteady and is mixed with water liquid asymmetrically due to the rapid change of thermophysical properties and the buoyancy effect.

Original languageEnglish
DOIs
Publication statusPublished - 2015 Jan 1
EventASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015 - Seoul, Korea, Republic of
Duration: 2015 Jul 262015 Jul 31

Other

OtherASME/JSME/KSME 2015 Joint Fluids Engineering Conference, AJKFluids 2015
CountryKorea, Republic of
CitySeoul
Period15/7/2615/7/31

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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