PRESENTATION OF CFD ACTIVITIES IN CV GROUP Daniel Gasser.

Slides:

Advertisements

Similar presentations

Phoenics User Conference on CFD May 2004 Vipac Engineers & Scientists Ltd COMPUTATIONAL FLUID DYNAMICS Simulation of Turbulent Flows and Pollutant Dispersion.

Advertisements

RFQ Cooling Studies.

Extended Surfaces Chapter Three Section 3.6.

2003 International Congress of Refrigeration, Washington, D.C., August 17-22, 2003 CFD Modeling of Heat and Moisture Transfer on a 2-D Model of a Beef.

Reliability Prediction of a Return Thermal Expansion Joint O. Habahbeh*, D. Aidun**, P. Marzocca** * Mechatronics Engineering Dept., University of Jordan,

Analysis of Simple Cases in Heat Transfer P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Gaining Experience !!!

Analysis of A Ground Coupled Heat Exchanger Brett Walsh Master of Engineering In Mechanical Engineering Rensselaer Polytechnic Institute at Hartford.

Analysis of Ground Coupled Heat Exchanger Efficiency Brett Walsh Master of Engineering In Mechanical Engineering Rensselaer Polytechnic Institute at Hartford.

CE 230-Engineering Fluid Mechanics Lecture # 4and5 Fluid properties (2)

Fluid Mechanics –For Civil Engineers is all about SMU Storing– Moving– Using ( Incompressible fluids - water) To design and manage these systems we need.

Tony Y. Bougebrayel, PE, PhD

CHE/ME 109 Heat Transfer in Electronics

CHE/ME 109 Heat Transfer in Electronics

Thermal Development of Internal Flows P M V Subbarao Associate Professor Mechanical Engineering Department IIT Delhi Concept for Precise Design ……

Enclosure Fire Dynamics

Fluid Dynamics: Boundary Layers

CHE/ME 109 Heat Transfer in Electronics

Flow and Thermal Considerations

Heat Transfer Rates Conduction: Fourier’s Law

Thermal Analysis and Design of Cooling Towers

RF-Accelerating Structure: Cooling Circuit Modeling Riku Raatikainen

Tutorial 5: Numerical methods - buildings Q1. Identify three principal differences between a response function method and a numerical method when both.

CFD team supports CERN development 19 May M.Battistin CERN May 19 th 2011 C omputational F luid D ynamics team C omputational F luid D ynamics team.

Flow Inside Heat Exchangers

STEADY HEAT TRANSFER AND THERMAL RESISTANCE NETWORKS

TS/CV/DC CFD Team Computational Fluid Dynamics at CERN Michele Battistin CERN, Geneva - Switzerland.

Calorimeter Analysis Tasks, July 2014 Revision B January 22, 2015.

The Use of Computational Fluid Dynamics (CFD) in Achieving Energy Reductions in New Zealand’s Industrial Energy Consumption Energy Research Group Department.

What are common results of heat transfer? Case #1, no phase transition or work done. How much does the temperature vary? Heat is energy in transit! Positive,

Content of Presentation Low temperature data for magnet-materials (Cu, NbTi,Insulation) Specific heat, thermal conductivity, resistivity ……. 4.5K Thermosyphon.

By: Narendra Babu N M110247ME THERMAL ANALYSIS OF MICROPROCESSOR.

D. Gasser ST/CV 1 Fluid distribution from UW85 Fully available now.

Design and construction We need to seek a design that Achieve the goal of the project which should be : compact effective So we need to know types of heat.

STUDY OF THE AIR TEMPERATURE AND VELOCITY AROUND THE ATLAS MUON CHAMBERS Emma Vigo Castellvi ST/CV Design.

Reading Materials: Chapter 9

Modelling of the blowing stage of the glass container forming process Christina G. Giannopapa.

Heat Transfer. introduction Heat transfer is the movement of energy from one point to another by virtue of a difference in temperature. Heating and cooling.

TS/CV/DC CFD Team CFD Study of the L3 Thermal Environment Sara C. Eicher

6 th September 20061S. Eicher, M. Battistin Upgrade Thermal Management Workshop September 6 th 2006 Bdg 40 Sara Eicher, Michele Battistin CFD Calculations.

SAHPA ® South African Heat Pipe Association Energy Postgraduate Conference EPC2013, Aug 2013 iThemba LABS Theoretical modeling and experimental verification.

Convection. Material Flow  Objects at different temperatures may not be in direct thermal contact.  An intermediate mechanism is needed to transfer.

Combustor modeling Webinar

TS/CV/DC CFD Team June 2005 – CERN & CFD Presentation1M. Battistin TS/CV/Detector Cooling - CFD Team CERN June 24 th 2005 Michele Battistin CERN presentation.

Problem and Purpose Hypotheses Design Plan Background Information Currently, school buses are very fuel inefficient, averaging 7 mpg (Laughlin, 2004).

CHAPTER 9 Velocity Profiles for Circular Sections and Flow in Noncircular Sections.

Evaluation of a rate form of the equation of state L.H. Fick, P.G. Rousseau, C.G. du Toit North-West University Energy Postgraduate Conference 2013.

Basic Hydraulics: Energy and Momentum concepts. Energy of flow Three kinds of energy gradients cause flow Elevation (called potential energy) Pressure.

Heat Transfer Su Yongkang School of Mechanical Engineering # 1 HEAT TRANSFER CHAPTER 6 Introduction to convection.

Heat Transfer Su Yongkang School of Mechanical Engineering # 1 HEAT TRANSFER CHAPTER 7 External flow.

CONVECTION : An Activity at Solid Boundary P M V Subbarao Associate Professor Mechanical Engineering Department IIT Delhi Identify and Compute Gradients.

Chapter 1. Essential Concepts

Lecture Objectives: Accuracy of the Modeling Software.

CHAPTER 6 Introduction to convection

CFD Simulation & Consulting Services Hi-Tech CFD | Voice: Optimizing Designs of Industrial Pipes, Ducts and.

Thermal Considerations in a Pipe Flow (YAC: 10-1– 10-3; 10-6) Thermal conditions  Laminar or turbulent  Entrance flow and fully developed thermal condition.

ERT 216/4 HEAT & MASS TRANSFER Sem 2/

Date of download: 10/16/2017 Copyright © ASME. All rights reserved.

CLIC module simulation model

CFD-Team Weekly Meeting - 8th March 2012

Date of download: 12/23/2017 Copyright © ASME. All rights reserved.

Kinetic Theory.

MEP & Stress Analysis Services in India

Computational Fluid Dynamic at CERN

Heat Transfer Coefficient

Thermal behavior of the LHCb PS VFE Board

Convective Heat Transfer

SOIL PERMEABILITY AND FLOW

PANDA Collaboration Meeting

Temperature Distribution Study of Composite Germanium Detector

Presentation transcript:

PRESENTATION OF CFD ACTIVITIES IN CV GROUP Daniel Gasser

What is CFD (1)? u CFD (Computational Fluid Dynamic) is a mean to simulate on computer a large range of phenomena linked to fluid mechanic : u flow analysis u heat transfer problems u thermodynamic u...

u Numerical resolution of equations governing fluid dynamic (conservation of mass, momentum and energy) u The main data required for a CFD analysis are u boundary and initial conditions u a mesh where physical values are calculated (velocity, pressure, temperature...) What is CFD (2)?

Goals of CFD studies in CV group u Get useful information about phenomena occurring in cooling and ventilation facilities (flow paths, head losses, heat transfer efficiency...). u Help in facilities design : pipe dimensioning, choice of a cooling fluid, shape improvement...

Current studies in CV group u Study of the bus bars cooling for ATLAS experiment. u Thermal analysis of an electronic box in the ECAL sub-detector (CMS experiment). u Cooling analysis of the ALICE experiment detector.

Cooling of the bus bar for ATLAS (context) u Compare the efficiency of air natural convection cooling with water cooling. u Choice of a simple cooling system.

Cooling of the bus bar for ATLAS ( 3D model)

Cooling of the bus bar for ATLAS (temperatures distribution) Air coolingWater cooling

Cooling of the bus bar for ATLAS (Heat transfer coefficient) Heat transfer to the cooling tubeHeat transfer to the air

Thermal analysis of an ECAL electronic box View of ECAL Electronic box

u Evaluate a proposed cooling solution which has to achieve the following requirements : u temperature variations of the crystal : 0.1 o C u crystal temperature of about 16 o C. u Analysis of the influence of the fin/box thermal contact resistance. Thermal analysis of an ECAL electronic box (context)

Thermal analysis of an ECAL electronic box (2D model)

Fin/box contact resistance of 2.75x10 -4 m 2 *K/W Fin/box contact resistance of 2.75x10 -2 m 2 *K/W Thermal analysis of an ECAL electronic box (temperature distribution)

Fin/box contact resistance of 2.75x10 -4 m 2 *K/W Fin/box contact resistance of 2.75x10 -2 m 2 *K/W Thermal analysis of an ECAL electronic box (temperature distribution below the thermal shield)

Cooling of ALICE detector u Evaluation of the solution proposed for the detector cooling. u The main requirement is a temperature gradient inside the detector of 3 o C.

Cooling of ALICE detector (model)

Cooling of ALICE detector (temperature distribution) Static model (no air flow)Air flow at m 3 /h and 20 o C

Cooling of ALICE detector (velocity field) Static model (no air flow)Air flow at m 3 /h and 20 o C

Conclusions u CFD helps to understand phenomena involved in situations where intuition or empirical calculations are useless. u CFD can reduce the number of test. u CFD is a cost and time saving tool if used adequately during the design process.