• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 101
  • 24
  • 20
  • 18
  • 13
  • 8
  • 8
  • 8
  • 8
  • 8
  • 7
  • 5
  • 4
  • 3
  • 3
  • Tagged with
  • 235
  • 235
  • 46
  • 29
  • 28
  • 25
  • 23
  • 22
  • 19
  • 18
  • 18
  • 17
  • 15
  • 15
  • 15
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

Groundwater movement and subsurface air flow induced by land reclamation and tidal fluctuation in coastal aquifers

Guo, Haipeng, January 2008 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Includes bibliographical references (leaf 190-202) Also available in print.
72

Detection and analysis of separated flow induced vortical structures /

Snider, Stephen David Louis. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 145-148). Also available on the World Wide Web.
73

Effect of breathing, posture, and air velocity on breathing zone gas concentrations for human subjects in a wind tunnel

El Sotouhy, Ahmed Reda. January 1900 (has links)
Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains xv, 134 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 133-134).
74

Steady and unsteady aerodynamic flow studies over a 1303 UCAV configuration

McLain, Brian K. January 2009 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Chandrasekhara, M. S. "September 2009." Description based on title screen as viewed on November 5, 2009. Author(s) subject terms: Unmanned Combat Air Vehicle, UCAV, UCAV 1303 Includes bibliographical references (p. 57-58). Also available in print.
75

Frictional losses of air flowing through plastic corrugated and PVC sewer pipe

Duarte-Massey, Jaime. January 1982 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 83-84).
76

Development of and measurements using a point Doppler velocimetry (PDV) system

Webb, David L. January 1999 (has links)
Thesis (M.S.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains vii, 98 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 62-66).
77

The commissioning and enhancement of a blow down wind tunnel /

Jeffries, Michael S. January 1900 (has links)
Thesis (M. Eng.)--Carleton University, 1994. / Includes bibliographical references. Also available in electronic format on the Internet.
78

The effects of shear and temperature distribution on low-level convection

Suchman, David, January 1970 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
79

Relationship between damper resistance and damper insertion depth

Jangam, Ranjit. January 2006 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains xi, 97 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 62-63).
80

Aerodynamic measurements on a small HAWT rotor in axial and yawed flow

Bellia, J. M. January 1990 (has links)
Current wind turbine performance codes are not yet able to predict the rotor aerodynamic behaviour with sufficient certainty. This has led to both the over-design of blades and to operational restrictions in certain wind conditions. Essentially the problem is one of aerodynamic stall. Steady 3-dimensional stall can occur near the blade root in high wind conditions and may produce more power than predicted. Dynamic stall can also be expected due to the effects of yawed operation, turbulence, tower shadow and the earth's boundary layer. The main aim of this work is to provide a coherent set of measured aerodynamic data accounting for both axial/non-axial flow and stall in high winds. These measurements are designed to highlight the effects of both steady and dynamic stall on the rotor aerodynamic performance. In addition, the data will enable current performance prediction codes to be developed and validated. A completely new turbine has been designed and built at Cranfield to make aerodynamic measurements using pressure transducers. The design has been dominated by the requirements of accommodating the transducer signal processing equipment and allowing variation of many of the rotor parameters. Three commercial glass fibre blades were installed and performance curves measured on a conventional field site at a height of 11.5m for three rotor speed settings. These measurements show the turbine to give adequate power performance. A mobile trailer has been used to tow the turbine at a height of 4m along the Cranfield runways. Mobile testing facilitates an accelerated test schedule and allows aerodynamic data to be acquired under controlled wind conditions. A fully instrumented blade, fitted with forty transducers, has been tested under these circumstances and produced a large database of pressure measurements covering operation in winds up to 25 iq/s and yaw angles between -4511 and +55°. Analysis of the data has shown it to be of good quality and allowed some of the effects of yaw and stall to be identified. The use of the data base for performance prediction code validation has also been established.

Page generated in 0.0409 seconds