Chisholm

An equation for use with venturi meters was given by Chisholm [Br Chem. Eng., 12, 454—457 (1967)]. A procedure for determining steam quahty via pressure-drop measurement with upflow through either venturi meters or sharp-edged orifice plates was given By Colhus and Gacesa [J. Basic Eng., 93, 11-21 (1971)]. 

This can be readily integrated numerically as long as we use the appropriate nonequilibrium equivalent specific volume in the integration. A reasonably simple form for has been suggested by Chisholm (1983), which makes use of estabhshed correlations for the slip velocity K, which depends on the Lockhart-Martinelh parameter X. Integrating Eq. (26-118) gives ... 

Chisholm D (1983) Int Conf Phys Modell Multiphase Flow Coventry Apr, Cranfield, p 219... 

Chemical reactions of metal-metal bonded compounds of the transition elements. M. H. Chisholm and I. P. Rothwell, Prog. Inorg. Chem., 1982, 29,1-72 (238). 

Prospects for dinuclear transition metal chemistry illustrated by recent advances in the chemistry of dimolybdenum and ditungsten. M. H. Chisholm, Transition Met. Chem. (Weinheim, Ger.), 1978, 3, 321-333 (91). 

Metal-metal bonds and metal-carbon bonds in the chemistry of molybdenum and tungsten alkox-ides. M. H. Chisholm, Polyhedron, 1983, 2, 681-721 (90). 

Chemistry of compounds containing metal to metal triple bonds between molybdenum and tungsten. M. H. Chisholm and F. A. Cotton, Acc. Chem. Res., 1978,11, 356-362 (66). 

The cr2 tta triple bond between molybdenum and tungsten atoms developing the chemistry of an inorganic functional group. M. H. Chisholm, Angew. Chem., Int. Ed. Engl., 1986,25,21 (70). 

Probably the most widely used method for estimating the drop in pressure due to friction is that proposed by LOCKHART and Martinelli(,5) and later modified by Chisholm(,8 . This is based on the physical model of separated flow in which each phase is considered separately and then a combined effect formulated. The two-phase pressure drop due to friction — APtpf is taken as the pressure drop — AP/, or — APG that would arise for either phase flowing alone in the pipe at the stated rate, multiplied by some factor 2L or . This factor is presented as a function of the ratio of the individual single-phase pressure drops and ... 

Chisholm, D, Two-phase Flow in Pipelines and Heat Exchangers (George Godwin, London, 1983). 

Chisholm, D. Inti. Jl. Heat and Mass Transfer 10 (1967) 1767. A theoretical basis for the Lockharl-Martinelli correlation for two-phase flow. 

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