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Prediction of Pressure and Temperature in CO2 Injection Wells Based on Analytical Modeling - Arron A. Tchouka Singhe

Prediction of Pressure and Temperature in CO2 Injection Wells Based on Analytical Modeling - Arron A. Tchouka Singhe

Injection into geological formations is seen by many as a short to medium term measure to reduce emissions of CO2 to the environment and as such to slowdown the pace of global warming. The injection process requires that the fluid flows effectively into the host formation. To this end it is very important to accurately predict the pressure and temperature of the fluid along the well and especially at the bottom of the hole. In the present dissertation a rigorous procedure to estimate fluid pressure..

DKK 443.95
1

Angular momentum transport and pattern formation in medium- and wide-gap turbulent Taylor-Couette flow - Andreas Froitzheim

Angular momentum transport and pattern formation in medium- and wide-gap turbulent Taylor-Couette flow - Andreas Froitzheim

Turbulent Taylor-Couette flow, where the fluid is confined by two coaxial and independently rotating cylinders, is experimentally investigated within this thesis for medium and wide gaps. To reveal the influence of flow patterns on the angular momentum transport, direct torque measurements, flow visualizations and particle image velocimetry are performed in two different facilities. For the largely unexplored radius ratio regime of ¿ = 0.357, the directly measured torque features a transition as..

DKK 528.95
1