Heat transfer in rotating systems is crucial for understanding and optimizing the thermal management of machinery and equipment. In such systems, the rotational motion can significantly influence the heat distribution and fluid dynamics, affecting the efficiency and performance of the system. Understanding these effects is essential for designing systems that maintain optimal temperature levels and prevent overheating, especially when dealing with high viscous fluids. Variations in velocity can significantly impact the heat transfer efficiency in a vertical rotating system. Higher fluid velocities generally enhance the heat transfer rate by reducing the thermal boundary layer thickness, allowing for more efficient convection. Conversely, lower velocities may result in a thicker thermal boundary layer, thus decreasing the overall heat transfer efficiency. Present study focused on mathematical modeling of a vertical rotating system based on high viscous fluids with different Reynolds numbers. Pressure variations can significantly influence heat dissipation in a vertical rotating system. Higher pressures tend to enhance the fluid's thermal conductivity, allowing for more efficient heat transfer. Mathematical modeling in heat transfer provides a powerful tool for predicting system behavior and optimizing design. A conceptual mathematical formula developed and solved in MATLAB for heat transfer responses. Fluid with medium Reynolds number with medium pressure and high velocity given better results compare with others.