Three-dimensional CFD simulation of Geyser boiling in a two-phase closed thermosyphon

By Hussam Jouhara, Bandar M. Fadhl, Luiz Carlos Wrobel. 2016

133 citations recorded by the source corpus.

Abstract This paper examines the application of CFD modelling to simulate the complex multiphase characteristics inside a wickless heat pipe (thermosyphon). Water and refrigerant R134a were selected as working fluids. A novel and comprehensive three-dimensional CFD model of a wickless heat pipe was developed to simulate both the complex multiphase heat and mass transfer characteristics of boiling and condensation and the heat transfer characteristics of the cooling fluid in the condenser – heat exchanger. The CFD simulation has successfully predicted, for the first time, a boiling regime and two phase flow pattern that takes place with water at low power throughput, known as geyser boiling. The effects of the power throughput on the characteristics of the geyser boiling were investigated. The CFD simulation was also successful in modelling and visualising the multiphase flow characteristics, emphasising the difference in pool boiling behaviour between these working fluids. Temperature profiles and visual validation of the resulting 3D CDF findings were conducted using two experimental facilities.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/466d44753114a9e54d9afda852631af90d1c82c3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

1. Sulaiman Almahmoud
2. A. Chauhan
3. Luiz Carlos Wrobel
4. B. Delpech
5. Hussam Jouhara
6. T. Nannou

In Mechanical Engineering

1. Luiz Carlos Wrobel
2. Hussam Jouhara
3. Sulaiman Almahmoud
4. A. Chauhan
5. B. Delpech
6. T. Nannou

Citations in the corpus

• Heat pipe based systems - Advances and applications (2017, background): “[165] developed a three-dimensional CFD model and simulated the effect of geyser boiling, with clear observations being made about the propagation of pool boiling and the formation of vapour bubbles for both high and low power.”