HYDRAFLOW: A Multiphase Cold Flow Technology for Offshore Flow Assurance Challenges

2008 ◽  
Author(s):  
Roghieh Azarinezhad ◽  
Antonin Chapoy ◽  
Ross Anderson ◽  
Bahman Tohidi
Keyword(s):  
Flow Assurance ◽  
Cold Flow ◽  
Offshore Flow

A Wet Cold-Flow Technology for Tackling Offshore Flow-Assurance Problems

2010 ◽  
Vol 5 (02) ◽  
pp. 58-64 ◽  
Author(s):  
Roghieh Azarinezhad ◽  
Antonin Chapoy ◽  
Ross Anderson ◽  
Bahman Tohidi
Keyword(s):  
Flow Assurance ◽  
Cold Flow ◽  
Offshore Flow

Cold Flow Simulation in Underground Coal Gasification (UCG) Cavities

2014 ◽  
Vol 1 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Dipankar Chatterjee ◽  
◽  
Satish Gupta ◽  
Chebolu Aravind ◽  
Rakesh Roshan
Keyword(s):  
Coal Gasification ◽  
Flow Simulation ◽  
Underground Coal Gasification ◽  
Cold Flow

Dynamic Flow Simulation to Study Flow Assurance Challenges in Water Alternating Gas WAG Wells

2016 ◽  
Author(s):  
Hassan Karimi ◽  
Erni Dharma Putra ◽  
Kapil Kumar Thakur ◽  
Rahel Yusuf ◽  
Azwan Shaharun ◽  
...  
Keyword(s):  
Flow Simulation ◽  
Flow Assurance ◽  
Dynamic Flow ◽  
Water Alternating Gas

Numerical Studies on Trapped-Vortex Concepts for Stable Combustion

1998 ◽  
Vol 120 (1) ◽  
pp. 60-68 ◽  
Author(s):  
V. R. Katta ◽  
W. M. Roquemore
Keyword(s):  
Drag Coefficient ◽  
Reacting Flow ◽  
Flow Conditions ◽  
Third Order ◽  
Cold Flow ◽  
Flow Simulations ◽  
Numerical Studies ◽  
Dynamic Flows ◽  
Experimental Findings ◽  
Trapped Vortex

Spatially locked vortices in the cavities of a combustor aid in stabilizing the flames. On the other hand, these stationary vortices also restrict the entrainment of the main air into the cavity. For obtaining good performance characteristics in a trapped-vortex combustor, a sufficient amount of fuel and air must be injected directly into the cavity. This paper describes a numerical investigation performed to understand better the entrainment and residence-time characteristics of cavity flows for different cavity and spindle sizes. A third-order-accurate time-dependent Computational Fluid Dynamics with Chemistry (CFDC) code was used for simulating the dynamic flows associated with forebody-spindle-disk geometry. It was found from the nonreacting flow simulations that the drag coefficient decreases with cavity length and that an optimum size exists for achieving a minimum value. These observations support the earlier experimental findings of Little and Whipkey (1979). At the optimum disk location, the vortices inside the cavity and behind the disk are spatially locked. It was also found that for cavity sizes slightly larger than the optimum, even though the vortices are spatially locked, the drag coefficient increases significantly. Entrainment of the main flow was observed to be greater into the smaller-than-optimum cavities. The reacting-flow calculations indicate that the dynamic vortices developed inside the cavity with the injection of fuel and air do not shed, even though the cavity size was determined based on cold-flow conditions.

scholarly journals Full-loop study of a dual fluidized bed cold flow system: Hydrodynamic simulation and validation

2021 ◽  
Author(s):  
Cong-Binh Dinh ◽  
Shu-San Hsiau ◽  
Chien-Yuan Su ◽  
Meng-Yuan Tsai ◽  
Yi-Shun Chen ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Flow System ◽  
Hydrodynamic Simulation ◽  
Cold Flow ◽  
Dual Fluidized Bed ◽  
Simulation And Validation

scholarly journals Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel‐Diesel Blends

2021 ◽  
Vol 98 (2) ◽  
pp. 163-172
Author(s):  
Baoting Su ◽  
Lulu Wang ◽  
Yuan Xue ◽  
Jincan Yan ◽  
Zhenbiao Dong ◽  
...  
Keyword(s):  
Pour Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Pour Point Depressants
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