## 3 Results and Discussions
At the points where the temperature increases, it comes very close to the ideal gas behavior with a value of 0.97272, and in the colder parts, it moves away from the ideal gas behavior with a minimum value of 0.96608. Figure 7: Absolute pressure of external fluid volume. Figures 10 and 11 are graphs showing the density distribution in the inner and outer fluid volumes. Density changes with temperature and pressure changes. Color tones in the graphs show how the density varies locally and whether the system is homogeneous. In Figure 10, the distribution of density contours is simulated for the R152a refrigerant. It was observed that the density decreased to around 4.80 kg/m\({}^{3}\) in areas where the temperature increased. It has been determined that in locations where the temperature decreases, the density increases and hovers around a maximum of 5.19 kg/m\({}^{3}\). In the analysis where changing density values were observed, it could be observed that the R152a refrigerant approached a homogeneous structure. Figure 8: Comparison of compressibility factor and pressure [23]. Figure 9: Compressibility factor of R152a. In Figure 11, the distribution of density contours is simulated for the external fluid volume at \(Z=\) p00.0 [cm]. It was observed that the density decreased to around 855.0 kg/m\({}^{3}\) in areas where the temperature increased. It has been determined that in locations where the temperature decreases, the density increases and hovers around a maximum of 908.33 kg/m\({}^{3}\). In the analysis where changing density values were observed, it was observed that the heated water approached a homogeneous structure. As seen in the distribution of density contours in Figure 12a-d (\(Z=\) p05.0 [cm], \(Z=\) p10.0 [cm], \(Z=\) p15.0 [cm], and \(Z=\) p20.0 [cm]), the external fluid is simulated volume-specifically. It was observed that the density decreased to around 857.01 kg/m\({}^{3}\) in areas where the temperature increased. It has been determined that in locations where the temperature decreases, the density increases and hovers around a maximum of 908.27 kg/m\({}^{3}\). In the analysis where changing density values were observed, it was seen that the observed fluids approached a homogeneous structure. Figure 11: Contour density of external fluid volume at \(Z=\) p00.0 [cm]. Figure 10: Contour density of internal fluid volume. In fluid dynamics, dynamic pressure (denoted by q or Q and sometimes called velocity pressure) is the quantity defined by  
\[\text{q}=1/2*\rho*u^{2}\]  
where, in SI units, the following is true:  
* q is the dynamic pressure in pascals in kg/(m*s2);
* \(\rho\) is the fluid mass density in kg/m3;
* \(u\) is the flow speed in m/s. It can be thought of as the fluid's kinetic energy per unit volume. In other words, the pressure resulting from the kinetic energy of a fluid is called dynamic pressure [24]. For incompressible flow, the dynamic pressure of a fluid is the difference between its total pressure and static pressure. The physical meaning of dynamic pressure is the kinetic energy per unit volume of a fluid. Dynamic pressure is one of the terms of [PERSON]'s equation, which can be derived from the conservation of energy for a fluid in motion [25; 26; 27; 28]. At a stagnation point, the dynamic pressure is equal to the difference between the stagnation pressure and the static pressure, so the dynamic pressure in a flow field can be measured at a stagnation point. In Figure 13, the distribution of dynamic pressure contours is simulated for the R152a internal fluid volume at Z = p00.0 [cm]. Figures 13 and 14 are graphs showing dynamic pressure values for internal and external fluid volumes. Dynamic pressure represents the kinetic energy of the fluid. The graphs show how the system accelerates and decelerates in different localizations. It was observed that in localizations where the temperature increased, the dynamic pressure value increased to around 1079.26 Pa.