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A Generalized One-Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations

A Generalized One-Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781724993960
Category :
Languages : en
Pages : 30

Book Description
A generalized one-dimensional computer code for analyzing the flow and heat transfer in the turbomachinery cooling passages was developed. This code is capable of handling rotating cooling passages with turbulators, 180 degree turns, pin fins, finned passages, by-pass flows, tip cap impingement flows, and flow branching. The code is an extension of a one-dimensional code developed by P. Meitner. In the subject code, correlations for both heat transfer coefficient and pressure loss computations were developed to model each of the above mentioned type of coolant passages. The code has the capability of independently computing the friction factor and heat transfer coefficient on each side of a rectangular passage. Either the mass flow at the inlet to the channel or the exit plane pressure can be specified. For a specified inlet total temperature, inlet total pressure, and exit static pressure, the code computers the flow rates through the main branch and the subbranches, flow through tip cap for impingement cooling, in addition to computing the coolant pressure, temperature, and heat transfer coefficient distribution in each coolant flow branch. Predictions from the subject code for both nonrotating and rotating passages agree well with experimental data. The code was used to analyze the cooling passage of a research cooled radial rotor. Kumar, Ganesh N. and Roelke, Richard J. and Meitner, Peter L. Glenn Research Center NASA-TM-102079, E-4839, NAS 1.15:102079, AVSCOM-TR-89-C-013, AD-A242628 DA PROJ. 1L1-61102-AH-45; RTOP 535-05-10...

A Generalized One-Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations

A Generalized One-Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781724993960
Category :
Languages : en
Pages : 30

Book Description
A generalized one-dimensional computer code for analyzing the flow and heat transfer in the turbomachinery cooling passages was developed. This code is capable of handling rotating cooling passages with turbulators, 180 degree turns, pin fins, finned passages, by-pass flows, tip cap impingement flows, and flow branching. The code is an extension of a one-dimensional code developed by P. Meitner. In the subject code, correlations for both heat transfer coefficient and pressure loss computations were developed to model each of the above mentioned type of coolant passages. The code has the capability of independently computing the friction factor and heat transfer coefficient on each side of a rectangular passage. Either the mass flow at the inlet to the channel or the exit plane pressure can be specified. For a specified inlet total temperature, inlet total pressure, and exit static pressure, the code computers the flow rates through the main branch and the subbranches, flow through tip cap for impingement cooling, in addition to computing the coolant pressure, temperature, and heat transfer coefficient distribution in each coolant flow branch. Predictions from the subject code for both nonrotating and rotating passages agree well with experimental data. The code was used to analyze the cooling passage of a research cooled radial rotor. Kumar, Ganesh N. and Roelke, Richard J. and Meitner, Peter L. Glenn Research Center NASA-TM-102079, E-4839, NAS 1.15:102079, AVSCOM-TR-89-C-013, AD-A242628 DA PROJ. 1L1-61102-AH-45; RTOP 535-05-10...

A Generalized One Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations

A Generalized One Dimensional Computer Code for Turbomachinery Cooling Passage Flow Calculations PDF Author: Ganesh N. Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description


Computer Code for Predicting Coolant Flow and Heat Transfer in Turbomachinery

Computer Code for Predicting Coolant Flow and Heat Transfer in Turbomachinery PDF Author: Peter L. Meitner
Publisher: DIANE Publishing
ISBN: 142891675X
Category : Heat
Languages : en
Pages : 40

Book Description


Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 556

Book Description


Computer Code for Predicting Coolant Flow and Heat Transfer in Turbomachinery

Computer Code for Predicting Coolant Flow and Heat Transfer in Turbomachinery PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722121716
Category :
Languages : en
Pages : 40

Book Description
A computer code was developed to analyze any turbomachinery coolant flow path geometry that consist of a single flow passage with a unique inlet and exit. Flow can be bled off for tip-cap impingement cooling, and a flow bypass can be specified in which coolant flow is taken off at one point in the flow channel and reintroduced at a point farther downstream in the same channel. The user may either choose the coolant flow rate or let the program determine the flow rate from specified inlet and exit conditions. The computer code integrates the 1-D momentum and energy equations along a defined flow path and calculates the coolant's flow rate, temperature, pressure, and velocity and the heat transfer coefficients along the passage. The equations account for area change, mass addition or subtraction, pumping, friction, and heat transfer. Meitner, Peter L. Glenn Research Center DA PROJ. 1L1-61102-AH-45; RTOP 505-62-0K...

NASA Technical Paper

NASA Technical Paper PDF Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 356

Book Description


NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 268

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Papers Presented at the AIAA/ASME/SAE/ASEE 25th Joint Propulsion Conference

Papers Presented at the AIAA/ASME/SAE/ASEE 25th Joint Propulsion Conference PDF Author:
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Category : Airplanes
Languages : en
Pages : 596

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Monthly Catalogue, United States Public Documents PDF Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1480

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Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 882

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