TY - JOUR
T1 - Hydro-thermo-fluidic aspects of Oldroyd B fluid with hybrid nanostructure subject to low and moderate Prandtl numbers
AU - Gope, Rajib
AU - Nayak, Manoj Kumar
AU - Shaw, Sachin
AU - Mondal, Sabyasachi
N1 - Funding Information:
The authors are thankful to Amity University, Kolkata, India, for the necessary support to complete this work. Funding: There is no funding for this research work. Conflict of Interest: The authors do not have any conflict of interest regarding the publication of this paper in this journal.
Publisher Copyright:
© 2023, Emerald Publishing Limited.
PY - 2023/2/24
Y1 - 2023/2/24
N2 - Purpose: The major goal of this article is to investigate flow and thermal aspects of Oldroyd B with hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers. Design/methodology/approach: The non-dimensional governing equations are solved considering BVP4C in MATLAB as instrumental. Findings: Entropy generation effect is analyzed. Radial velocity and entropy generation exhibit opposite effect in response to amplified relaxation and retardation time parameters in case of both low and moderate Prandtl numbers. Augmented relaxation and retardation time parameters controls heat transfer rate.The results show that increasing the aspect ratio increases both the average Nusselt and entropy generation numbers for each value of the Prandtl number, while increasing the prandtl number decreases both. There is also a minimum value for the entropy generation number at a given relaxation and retardation parameter. Research limitations/implications: Assume that the Oldroyd B fluid is dispersed with hybrid nanostructure in order to ameliorate thermal conductivity of Oldroyd B fluid so as to make it as best coolant. Practical implications: The low range of Prandtl number comprising particles of air, gas, etc. and moderate range of Prandtl number comprising particles of honey, thin motor oil, or any non-Newtonian liquid. The hybrid nanofluid is radiative in nature. Also, the effects of significant physical parameters on entropy generation are highlighted. The entropy generation number intensifies due to the rise in temperature difference parameter at low/moderate Prandtl number effectively. Entropy minimization can lead to the amelioration of available energy thereby enhances the efficiency of several thermal systems. Originality/value: This article's primary goal is to investigate the flow and thermal aspects of Oldroyd B with a hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers.
AB - Purpose: The major goal of this article is to investigate flow and thermal aspects of Oldroyd B with hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers. Design/methodology/approach: The non-dimensional governing equations are solved considering BVP4C in MATLAB as instrumental. Findings: Entropy generation effect is analyzed. Radial velocity and entropy generation exhibit opposite effect in response to amplified relaxation and retardation time parameters in case of both low and moderate Prandtl numbers. Augmented relaxation and retardation time parameters controls heat transfer rate.The results show that increasing the aspect ratio increases both the average Nusselt and entropy generation numbers for each value of the Prandtl number, while increasing the prandtl number decreases both. There is also a minimum value for the entropy generation number at a given relaxation and retardation parameter. Research limitations/implications: Assume that the Oldroyd B fluid is dispersed with hybrid nanostructure in order to ameliorate thermal conductivity of Oldroyd B fluid so as to make it as best coolant. Practical implications: The low range of Prandtl number comprising particles of air, gas, etc. and moderate range of Prandtl number comprising particles of honey, thin motor oil, or any non-Newtonian liquid. The hybrid nanofluid is radiative in nature. Also, the effects of significant physical parameters on entropy generation are highlighted. The entropy generation number intensifies due to the rise in temperature difference parameter at low/moderate Prandtl number effectively. Entropy minimization can lead to the amelioration of available energy thereby enhances the efficiency of several thermal systems. Originality/value: This article's primary goal is to investigate the flow and thermal aspects of Oldroyd B with a hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers.
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U2 - 10.1108/MMMS-09-2022-0200
DO - 10.1108/MMMS-09-2022-0200
M3 - Article
AN - SCOPUS:85147110895
SN - 1573-6105
VL - 19
SP - 292
EP - 310
JO - Multidiscipline Modeling in Materials and Structures
JF - Multidiscipline Modeling in Materials and Structures
IS - 2
ER -