Two dimensional temperature distribution model in human dermal region exposed at low ambient temperatures with air flow

Gurung, Dil Bahadur

doi:10.3126/kuset.v8i2.7320

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…Agrawal et al [22] prepared a model for the temperature distribution in a human limb by assuming an irregular tapered shape limb with a variable radius and eccentricity. Gurung [23] prepared a model in two-dimensional temperature distribution in the human dermal region exposed at low ambient temperature with airflow. Kenefick et al [2] experimentally studied the temperature of skin layers during the marathon and noticed that the maximum body core temperature reaches 39.5 °C.…”

Section: Thermal Regulation Mechanismmentioning

confidence: 99%

Two-Dimensional FEM Approach of Metabolic Effect on Thermoregulation in Human Dermal Parts During Walking and Marathon

Shrestha

Acharya

Gurung

2023

Modelling and Simulation in Engineering

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The physiological mechanisms conduction, convection, and radiation exchange the heat energy in bi-directional routes between the body and the temperature field. Metabolism and evaporation are the uni-directional routes for the exchange of heat energy. In the metabolic process, the body creates internal heat energy, whereas the body loses excess heat energy through the evaporation process and maintains the body temperature. This study has shown steady and unsteady state temperature distribution in three skin layers: epidermis, dermis, and subcutaneous tissue, during walking and marathon. The results have analyzed that each skin layer temperature is higher during a marathon compared with walking due to more metabolic effects. The computation has been carried out for the two-dimensional Pennes’ bio-heat equation using a finite element approach. The generated results have been exhibited graphically.

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Section: Thermal Regulation Mechanismmentioning

confidence: 99%

Two-Dimensional FEM Approach of Metabolic Effect on Thermoregulation in Human Dermal Parts During Walking and Marathon

Shrestha

Acharya

Gurung

2023

Modelling and Simulation in Engineering

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“…For simulation to numerical results of the model, the parameter values are taken as follows: [32], [33], [34], [35]) Note: h = 0 ( cal/cm 2 min°C) at warm (T a = 35°C) environment [37,35,32].…”

Section: Parameter Valuesmentioning

confidence: 99%

A Mathematical Study of Effect of Humidity on Human Skin Temperature at Warm Environment

Subedi¹

2021

J. Inst. Engineering

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The ability of the human body to regulate its heat exchange depends on various environmental factors together with its ability to exchange heat in in-vivo tissue. The environmental factor humidity plays a crucial role in heat regulation within the human body. The heat regulation within in-vivo tissue constitutes temperature regulation in the layers of the dermal part to maintain body core temperature constant. The purpose of this article is to develop a mathematical model to study the effect of humidity on temperature regulation within the human body. The model has been developed for one dimensional steady state flow of heat in human dermal parts with appropriate boundary conditions containing the factors of effect of humidity. Matlab program has been used to simulate the model and obtain numerical results with graphs.

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“…Perl [4] in 1962 used it to illustrate heat distribution and tissue blood flow in body tissues. Since then it has been used by many researchers and scientists [1] [5]- [11] for analysis in their respective areas of research. A lot of research on wound healing has also been done by considering different parameters like size and shape of the wound, the effect of growth factors, the effect of angiogenesis, the effect of oxygen concentration at the wound site etc.…”

Section: Introductionmentioning

confidence: 99%

A Two-Dimensional Mathematical Model to Analyze Thermal Variations in Skin and Subcutaneous Tissue Region of Human Limb during Surgical Wound Healing

Gupta¹,

Shakya²

2016

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During wound healing, the metabolic activity associated with each phase must occur in the proper sequence, at a specific time, and continue for a specific duration at an optimal intensity. Any disturbance in appropriate thermal environment may complicate the wound healing process and may give rise to wound infection. In the presented paper a transient state two-dimensional mathematical model has been developed to analyse thermal variations in skin and subcutaneous tissue (SST) region of human limb. Due to circular shape of human limb, model has been developed in polar coordinates. The domain of the study consists of two types of tissues: abnormal tissues and normal tissues. The post surgery peripheral tissue of human limb during healing time is considered as abnormal tissues. The effect of variable density of blood vessels in dermal layer of both tissues on the physical and physiological parameters is incorporated in the model. The effect of healing on physiological parameters of abnormal tissue is incorporated by considering the physiological parameters to be function of time "t". The effect of different climatic conditions is considered in the model. Taking into account the variable core temperature due to anatomy of arteries and variable physiological parameters in dermal layer of peripheral region, the well known Pennes' bio heat equation is used to analyse the time-dependent temperature distribution of both normal and abnormal tissues. Comparison between temperature profiles of both normal and abnormal tissue has been done using finite element approach with bilinear shape functions in polar coordinates. A computer program in MATLAB has been developed to simulate the results.

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Two dimensional temperature distribution model in human dermal region exposed at low ambient temperatures with air flow

Cited by 6 publications

References 16 publications

Two-Dimensional FEM Approach of Metabolic Effect on Thermoregulation in Human Dermal Parts During Walking and Marathon

Two-Dimensional FEM Approach of Metabolic Effect on Thermoregulation in Human Dermal Parts During Walking and Marathon

A Mathematical Study of Effect of Humidity on Human Skin Temperature at Warm Environment

A Two-Dimensional Mathematical Model to Analyze Thermal Variations in Skin and Subcutaneous Tissue Region of Human Limb during Surgical Wound Healing

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