CEC-ICMC 2015 - Timetable, Abstracts and Presentations

Session

C2OrD - CFD and Numerical Modelling

C2OrD

30 Jun 2015, 11:00

JW Marriott Starr Pass Resort

Conveners

C2OrD - CFD and Numerical Modelling

• Parthasarathi Ghosh (Indian Institute of Technology, Kharagpur, India)
• Peter Knudsen (Jefferson Lab)

262. CFD study on the effects of viscous shear in a hot cascade Ranque-Hilsch vortex tube

Nilotpala Bej (Indian Institute of Technology, Kharagpur)

30/06/2015, 11:00

CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties

Contributed Oral Presentation

Ranque -Hilsch vortex tube is a device that is capable of splitting the highly compressed inlet gas into two streams of lower pressure gases, namely, central zone of cold fluid generated near the axis and peripheral zone of hot fluid around the inner wall of the tube. Though, vortex tube has many benefits over the conventional heating and cooling devices, low efficiency is the biggest drawback...

134. CFD analysis of straight and flared vortex tube

Mr Aman Kumar Dhillon (Indian Institute of Technology, Kharagpur)

30/06/2015, 11:15

CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties

Contributed Oral Presentation

Vortex tube (VT) is a simple low refrigeration producing device having no moving part. However, the flow inside it is very complex. Recent studies show that the performance of VT improves with the increase in the divergence angle of a flared VT. To explore the temperature separation phenomenon in the VT, a three dimensional computational fluid dynamics (CFD) analysis of VT was carried out. For...

184. Experimental and CFD analyses of a thermal radiation shield dimple plate for cryogenic pump application

Mr Matthieu Scannapiego (Karlsruhe Institute of Technology)

30/06/2015, 11:30

CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties

Contributed Oral Presentation

Large customized cryogenic pumps are used in fusion reactors to evacuate the plasma exhaust from the torus. They usually consist in an active pumping surface area cooled below 5 K and shielded from direct outer thermal radiation by plates cooled at about 80K. Cryopumps are exposed to excessively high heat fluxes during pumping operation and follow regeneration cycles with rapid warm-up and...

203. Hierarchy of Two-Phase Flow Models for Autonomous Control of Cryogenic Loading Operation

Dr Dmitry Luchinsky (Mission Critical Technologies)

30/06/2015, 11:45

CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties

Contributed Oral Presentation

We report on the development of a hierarchy of models of two-phase flow in cryogenic transfer line. The work is motivated by NASA plans to develop and maturate technology of cryogenic propellant loading on the ground and in space. The solution of this problem requires two-phase cryogenic flow models that are fast and accurate enough to identify flow conditions, to detect deviations from the...