Melting heat transportation in chemical reactive flow of third grade nanofluid with irreversibility analysis

2021 ◽  
Vol 129 ◽  
pp. 105696
Author(s):  
Sohail A. Khan ◽  
M. Ijaz Khan ◽  
Faris Alzahrani
Keyword(s):  
Third Grade ◽  
Reactive Flow ◽  
Melting Heat

Impact of Activation Energy in Nonlinear Mixed Convective Chemically Reactive Flow of Third Grade Nanomaterial by a Rotating Disk

2018 ◽  
Vol 17 (3) ◽  
Author(s):  
T. Hayat ◽  
Sohail A. Khan ◽  
M. Ijaz Khan ◽  
A. Alsaedi
Keyword(s):  
Activation Energy ◽  
Nonlinear Problems ◽  
Rotating Disk ◽  
Convergent Series ◽  
Third Grade ◽  
Reactive Flow ◽  
Physical Parameters ◽  
Nonlinear Thermal Radiation ◽  
Grade Fluid ◽  
Flow Variables

Abstract Here impact of activation energy in binary chemically reactive flow of third grade fluid is addressed. Flow is discussed by a stretchable rotating disk. Novel characteristics regarding thermophoresis and Brownian movement have been analyzed. Nonlinear thermal radiation is considered. Convergent series solutions to nonlinear problems are computed. Impacts of various physical parameters like Brownian motion parameter, Prandtl number, mixed convection parameter, thermophoresis parameter, radiation parameter, activation energy, chemical reaction and Schmidt number on the velocity, concentration and thermal fields are discussed and analyzed. Velocity, temperature and concentration gradients are computed and discussed through various flow variables. Their obtained results present that velocity, temperature, concentration fields are strongly depends on the flow parameters. Main conclusions are presented.

Implication of Magneto-hydrodynamics and Melting Heat Transfer in Cubic Autocatalytic Reactive Flow with Entropy Generation

2021 ◽  
Vol 26 (3) ◽  
pp. 285-293
Author(s):  
Sohail A. Khan ◽  
M. Ijaz Khan ◽  
Sami Ullah Khan ◽  
M. Y. Malik ◽  
A. Ghareeb
Keyword(s):  
Heat Transfer ◽  
Entropy Generation ◽  
Reactive Flow ◽  
Melting Heat ◽  
Melting Heat Transfer

scholarly journals Analysis of Reactive Flow of Third-grade Exothermi Chemical Reaction with Variable Viscosity and Convective Cooling

2019 ◽  
pp. 1-10
Author(s):  
J. F. Baiyeri ◽  
M. A. Mohammed ◽  
O. A. Esan ◽  
T. O. Ogunbayo ◽  
O. E. Enobabor
Keyword(s):  
Heat Generation ◽  
Blow Up ◽  
Variable Viscosity ◽  
Wall Friction ◽  
Third Grade ◽  
Reactive Flow ◽  
Thermal Buoyancy ◽  
Method Of Solution ◽  
Convective Exchange ◽  
Validation Of Results

The study examines incomprssible laminar Poiseuille flow of a non-Newtonian fluid and heat transfer in a cooling convective fixed wall. The third-grade exothermic reactive fluid is stimulated by heat generation, gradient pressure and thermal buoyancy force. The convective exchange of temperature with the ambient takes after Newtons cooling law. Transilation of the formulated equations to the non-dimensional form is done using relevance quantities and solutions to the nonlinear equations are provided by employing Weighted residual techniques. The obtained solutions for the flow rate, energy, flow wall friction and temperature gradient are graphically plotted for the reactive flow system. Numerical validation of results in comparison with the presented method of solution is carried out. The results revealed that some parameters which are strong heat generation or source should be consciously guided to avoid reactive solution blow up in the exothermic system.

scholarly journals Melting heat transfer in the stagnation-point flow of third grade fluid past a stretching sheet with viscous dissipation

2013 ◽  
Vol 17 (3) ◽  
pp. 865-875 ◽  
Author(s):  
Tasawar Hayat ◽  
Zahid Iqbal ◽  
Meraj Mustafa ◽  
Awatif Hendi
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Stagnation Point ◽  
Stretching Sheet ◽  
Third Grade ◽  
Third Grade Fluid ◽  
Melting Heat ◽  
Melting Heat Transfer ◽  
Grade Fluid ◽  
Layer Flow

An analysis has been carried out for the characteristics of melting heat transfer in the boundary layer flow of third grade fluid in a region of stagnation point past a stretching sheet. The relevant partial differential equations are reduced into ordinary differential system by suitable transformations. The series solutions are developed by homotopy analysis method (HAM). It is revealed that an increase in the melting parameter (M ) decreases the velocity and the temperature (? ). An increase in the third grade parameter (? ) increases the velocity and the boundary layer thickness. The present results are also compared with the previous studies.

Classroom Teacher and Speech Clinician Severity Ratings of Different Speech Disorders

1975 ◽  
Vol 6 (3) ◽  
pp. 119-124 ◽  
Author(s):  
Robert T. Wertz ◽  
Michael D. Mead
Keyword(s):  
Public School ◽  
Cleft Palate ◽  
Classroom Teacher ◽  
First Grade ◽  
Speech Disorders ◽  
Third Grade ◽  
Second Grade ◽  
Classroom Teachers

Typical examples of four different speech disorders—voice, cleft palate, articulation, and stuttering—were ranked for severity by kindergarten, first-grade, second-grade, and third-grade teachers and by public school speech clinicians. Results indicated that classroom teachers, as a group, moderately agreed with speech clinicians regarding the severity of different speech disorders, and classroom teachers displayed significantly more agreement among themselves than did the speech clinicians.

Effective Collaboration at Central Elementary School

1992 ◽  
Vol 23 (4) ◽  
pp. 367-368 ◽  
Author(s):  
Jennifer Chisler Borsch ◽  
Ruth Oaks
Keyword(s):  
Elementary School ◽  
Communication Skills ◽  
Third Grade ◽  
Collaborative Effort ◽  
Speech Language Pathologist ◽  
Grade Teacher ◽  
Effective Collaboration

This article discusses a collaborative effort between a speech-language pathologist and a regular third grade teacher. The overall goal of the collaboration was to improve communication skills of students throughout the school. The factors that contributed to making the collaboration a success are discussed.

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