Author: Mona Hassanzadeh Jobehdar
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Effervescent atomization uses the internal gas-liquid mixture to produce spray. The behavior of two-phase flow inside the atomizer influences the spray characteristics and is dependent on the atomizer internal geometry and operating conditions. The present study is conducted in two parts; study of the bubble formation from a novel submerged nozzle in a liquid cross-flow and investigation of the internal and external two-phase flows in an effervescent atomizer. The present study investigated the performance of a novel nozzle developed by Gadallah and Siddiqui (2013) in the liquid cross-flow. The impact of the nozzle shape, its configurations and orientations was experimentally investigated. The results showed that the novel nozzle generates smaller bubbles at higher detachment frequency for all cases compared to the standard nozzle. It is found that the elastic rebound of the bubble from a side hole plays a key role in the early bubble detachment. For the effervescent atomizer study, the impact of atomizer's internal geometry on the internal flow and spray droplet characteristics were studied. The results demonstrated that a conical base aerator tube and shorter mixing zone length provide more uniform bubbles in smaller size. A new type of bubble breaker was designed and tested in an effervescent atomizer. The results show that both internal and external two-phase flows in the atomizer were strongly influenced by bubble breaker configurations (diameter and number of holes). It was found that the liquid shear stress is the dominant force causing the bubble elongation and its eventual breakup.
Experimental Study of Two-Phase Flow in a Liquid Cross-Flow and an Effervescent Atomizer
Author: Mona Hassanzadeh Jobehdar
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Effervescent atomization uses the internal gas-liquid mixture to produce spray. The behavior of two-phase flow inside the atomizer influences the spray characteristics and is dependent on the atomizer internal geometry and operating conditions. The present study is conducted in two parts; study of the bubble formation from a novel submerged nozzle in a liquid cross-flow and investigation of the internal and external two-phase flows in an effervescent atomizer. The present study investigated the performance of a novel nozzle developed by Gadallah and Siddiqui (2013) in the liquid cross-flow. The impact of the nozzle shape, its configurations and orientations was experimentally investigated. The results showed that the novel nozzle generates smaller bubbles at higher detachment frequency for all cases compared to the standard nozzle. It is found that the elastic rebound of the bubble from a side hole plays a key role in the early bubble detachment. For the effervescent atomizer study, the impact of atomizer's internal geometry on the internal flow and spray droplet characteristics were studied. The results demonstrated that a conical base aerator tube and shorter mixing zone length provide more uniform bubbles in smaller size. A new type of bubble breaker was designed and tested in an effervescent atomizer. The results show that both internal and external two-phase flows in the atomizer were strongly influenced by bubble breaker configurations (diameter and number of holes). It was found that the liquid shear stress is the dominant force causing the bubble elongation and its eventual breakup.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Effervescent atomization uses the internal gas-liquid mixture to produce spray. The behavior of two-phase flow inside the atomizer influences the spray characteristics and is dependent on the atomizer internal geometry and operating conditions. The present study is conducted in two parts; study of the bubble formation from a novel submerged nozzle in a liquid cross-flow and investigation of the internal and external two-phase flows in an effervescent atomizer. The present study investigated the performance of a novel nozzle developed by Gadallah and Siddiqui (2013) in the liquid cross-flow. The impact of the nozzle shape, its configurations and orientations was experimentally investigated. The results showed that the novel nozzle generates smaller bubbles at higher detachment frequency for all cases compared to the standard nozzle. It is found that the elastic rebound of the bubble from a side hole plays a key role in the early bubble detachment. For the effervescent atomizer study, the impact of atomizer's internal geometry on the internal flow and spray droplet characteristics were studied. The results demonstrated that a conical base aerator tube and shorter mixing zone length provide more uniform bubbles in smaller size. A new type of bubble breaker was designed and tested in an effervescent atomizer. The results show that both internal and external two-phase flows in the atomizer were strongly influenced by bubble breaker configurations (diameter and number of holes). It was found that the liquid shear stress is the dominant force causing the bubble elongation and its eventual breakup.
An experimental study of inclined two-phase flow
Author: Hemanta Mukherjee
Publisher:
ISBN:
Category : Petroleum engineering
Languages : en
Pages : 168
Book Description
Publisher:
ISBN:
Category : Petroleum engineering
Languages : en
Pages : 168
Book Description
Computational and Experimental Study of Two Phase Flow in Pressure Swirl Atomizer
Author: Sherry Kwabla Amedorme
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An Experimental Study of Inclined Two-phase Flow
Author: Hemant Kumar Mukherjee
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 202
Book Description
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 202
Book Description
Experimental study of two phase flow regimes
Author: Claude P. Brancart
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An Experimental Study of Horizontal Two Phase Flow
Author: Jae-Young Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 344
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 344
Book Description
An Experimental Study of Two-phase Flow in Inclined Pipes
Author: Howard Dale Beggs
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Experimental Study of Two Phase Flow
Author: Samuel Clarence Barnett
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 92
Book Description
An Experimental Study of Two Phase Flow in Inclined Pipes
Author: Sunil L. Kokal
Publisher:
ISBN:
Category : Pipe
Languages : en
Pages : 590
Book Description
Publisher:
ISBN:
Category : Pipe
Languages : en
Pages : 590
Book Description
Two-Phase Flow
Author: Cl Kleinstreuer
Publisher: CRC Press
ISBN: 9781591690009
Category : Science
Languages : en
Pages : 472
Book Description
This graduate text provides a unified treatment of the fundamental principles of two-phase flow and shows how to apply the principles to a variety of homogeneous mixture as well as separated liquid-liquid, gas-solid, liquid-solid, and gas-liquid flow problems, which may be steady or transient, laminar or turbulent. Each chapter contains several sample problems, which illustrate the outlined theory and provide approaches to find simplified analytic descriptions of complex two-phase flow phenomena. This well-balanced introductory text will be suitable for advanced seniors and graduate students in mechanical, chemical, biomedical, nuclear, environmental and aerospace engineering, as well as in applied mathematics and the physical sciences. It will be a valuable reference for practicing engineers and scientists. A solutions manual is available to qualified instructors.
Publisher: CRC Press
ISBN: 9781591690009
Category : Science
Languages : en
Pages : 472
Book Description
This graduate text provides a unified treatment of the fundamental principles of two-phase flow and shows how to apply the principles to a variety of homogeneous mixture as well as separated liquid-liquid, gas-solid, liquid-solid, and gas-liquid flow problems, which may be steady or transient, laminar or turbulent. Each chapter contains several sample problems, which illustrate the outlined theory and provide approaches to find simplified analytic descriptions of complex two-phase flow phenomena. This well-balanced introductory text will be suitable for advanced seniors and graduate students in mechanical, chemical, biomedical, nuclear, environmental and aerospace engineering, as well as in applied mathematics and the physical sciences. It will be a valuable reference for practicing engineers and scientists. A solutions manual is available to qualified instructors.