Strategies to reduce friction losses and their implications for the energy efficient design of internal flow domains
Strategies to reduce friction losses and their implications for the energy efficient design of internal flow domains

Author: Daschiel, Gertraud Maria

Publisher: KIT Scientific Publishing

Published: 2015-01-29

Total Pages: 190

ISBN-13: 3731502917

DOWNLOAD EBOOK

This work aims at developing a strategy how the energy which has to be applied to transport incompressible and Newtonian fluids through straight ducts can be reduced. Based on the physical properties of laminar and turbulent flow, models are derived which theoretically lead to the reduction of the dissipated energy. The possibility to implement the proposed state due to appropriate design aspects in the cross section shape of the duct is investigated based on numerical simulations of the flow.

Strategies to Reduce Friction Losses and Their Implications for the Energy Efficient Design of Internal Flow Domains
Strategies to Reduce Friction Losses and Their Implications for the Energy Efficient Design of Internal Flow Domains

Author: Gertraud Maria Daschiel

Publisher:

Published: 2020-10-09

Total Pages: 186

ISBN-13: 9781013283079

DOWNLOAD EBOOK

This work aims at developing a strategy how the energy which has to be applied to transport incompressible and Newtonian fluids through straight ducts can be reduced. Based on the physical properties of laminar and turbulent flow, models are derived which theoretically lead to the reduction of the dissipated energy. The possibility to implement the proposed state due to appropriate design aspects in the cross section shape of the duct is investigated based on numerical simulations of the flow This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

High accuracy determination of skin friction differences in an air channel flow based on pressure drop measurements
High accuracy determination of skin friction differences in an air channel flow based on pressure drop measurements

Author: Güttler, Andreas

Publisher: KIT Scientific Publishing

Published: 2017-04-13

Total Pages: 238

ISBN-13: 3731505029

DOWNLOAD EBOOK

The present work delivers a versatile, accurate and reliable wind tunnel facility that is particularly developed to test different flow control techniques for drag reduction in precisely adjustable test conditions. Skin friction changes of 0.4% are resolved, which is comparable to the most accurate reported studies in liquids. this high accuracy is verified through a comprehensive uncertainty analysis. Subsequently, various passive and active flow control strategies are investigated.

Bulletin of the Atomic Scientists
Bulletin of the Atomic Scientists

Author:

Publisher:

Published: 1973-10

Total Pages: 64

ISBN-13:

DOWNLOAD EBOOK

The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.

Bulletin of the Atomic Scientists
Bulletin of the Atomic Scientists

Author:

Publisher:

Published: 1970-12

Total Pages: 104

ISBN-13:

DOWNLOAD EBOOK

The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.

Aeronautical Engineering
Aeronautical Engineering

Author:

Publisher:

Published: 1982

Total Pages: 774

ISBN-13:

DOWNLOAD EBOOK

A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)