Weatherup, Robert A. (1949) An experimental investigation of the pressure loss in flow through helical coils. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-02052009-133758
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This thesis is a report of an experimental investigation of pressure losses in flow through helical coils of circular cross section. The investigation aimed at the determination of a multiplying factor [...] which could be applied to the friction factor for an equivalent straight pipe in order to determine the effective friction factor for flow through a helical coil.
The following conclusions were reached:
1. The multiplicative factor [...] is a function of Reynolds number and has a minimum value at a Reynolds number of approximately 8,000.
2. The factor [...] is also dependent on the ratio [...]. The general effect of this ratio is to increase [...] as the ratio [...] is decreased. At Reynolds numbers above 8,000, however, [...] was found to be rather insensitive to variation in [...] over the range from [...] with a minimum at [...].
3. The factor [...] was found to be independent of the ratios [...] and [...] over the ranges investigated.
|Item Type:||Thesis (Engineer's thesis)|
|Degree Grantor:||California Institute of Technology|
|Division:||Engineering and Applied Science|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||1 January 1949|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Imported from ETD-db|
|Deposited On:||09 Feb 2009|
|Last Modified:||26 Dec 2012 02:30|
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