CFD Simulation Model for Optimum Design of B-Series Propeller using Multiple Reference Frame (MRF)

Permadi, Niki Veranda Agil; Sugianto, Erik

doi:10.37934/cfdl.14.11.2239

Cited by 10 publications

(5 citation statements)

References 14 publications

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“…Afterwards they were weighed again after being dried. Analysis of mass loss were conducted by method of ASTM explained previously [33][34][35][36][37][38][39]. The tests were conducted in duplicate in order to assure the results accuracy and the weight loss mean was reported.…”

Section: Weight Loss Analysismentioning

confidence: 99%

A Study of the Thermal Behavior of Some Materials Used to Prevent Corrosion in Mechanical Parts

Muhsin

2023

ARFMTS

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Thermal deterioration of Machines is the change in the properties of the basic material as a result of thermal reaction with its environment as a result of the presence of moisture in the bodies of machines such as the bodies of aircraft, cars, engineering equipment and related to the mechanics of the machines in the field of mechanical engineering, which is called the medium of deterioration and not as a result of a mechanical process such as friction in the machines as a result of work Continuous in these machines, according to this definition there is a possibility of corrosion not only in metals, but other materials such as concrete and containers that are in direct contact with moisture, air and environmental factors that are a catalyst for mechanical deterioration. Many researchers in mechanical engineering were interested in the thermal processes of machines, so the problem of corrosion and friction of machines and other important problems that have been studied extensively by finding engineering solutions to reduce or eliminate them. Corrosion of Machines be a limiting factor for various materials in many applications. Thus, it is necessary to have a better understanding of the deterioration processes, their prevention and reduction of the associated damage. In this research the preparation of some reagents and their use as deterioration inhibitors to reduce the deterioration process in engineering machinery by measuring the loss in weights resulting from the phenomenon of deterioration in engineering machinery. These thermal reagents were prepared as a thermal inhibitor painting, diagnosed in spectroscopic techniques, and then some thermal measurements were made to studying them as inhibitors of engineering corrosion in machines. The results appeared that the prepared reagents are good deterioration’s inhibitors due to the inhibition efficiency of the selected thermal reagents increased with increasing of concentration, and decreased with increasing of temperature.

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Section: Weight Loss Analysismentioning

confidence: 99%

A Study of the Thermal Behavior of Some Materials Used to Prevent Corrosion in Mechanical Parts

Muhsin

2023

ARFMTS

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“…In the past, numerical analysis studies were performed in order to reach a comprehensive understanding of the flow past a simple body before applying the method to a more complex geometry. Nowadays, CFD is a more reliable method of analysing the hydrodynamics of a complex geometry such as a ship (both free surface ships and submarines), and many kinds of CFD approaches have been applied (Sugianto et al 2022;Permadi and Sugianto 2022). Atta et al (2019) used CFD to perform a hydrodynamic design and performance analysis of underwater vehicles.…”

Section: Introductionmentioning

confidence: 99%

Influence of Full and Symmetrical Domains on the Numerical Flow around a SUBOFF Submarine Model using OpenFOAM

2023

JAFM

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In this research, we consider the influence of two kinds of domain on the numerical flow around a submarine model. A fully appended SUBOFF submarine model was used, and the structure and characteristics of the flow were investigated under a full domain and a symmetrical domain arrangement. The numerical simulation was carried out using the OpenFOAM software, and the flow was numerically modelled as single-phase and incompressible. The SST k-ω turbulence model was used in both domains, together with an insensitive Spalding wall function to represent the boundary layer near the wall. The results showed that simulations in both the full and symmetrical domains could accurately predict the total resistance. Compared to the symmetrical domain, the resistance value obtained with the full domain was more precise; the symmetrical domain under coarse grid conditions had an error value of 1.34%, whereas the full domain using the same grid size had an error value of 0.6%. Hence, the full domain was superior in terms of predicting the resistance with a coarse grid. Next, the pressure coefficient comparison at the leading edge of the rudder was calculated, where = 0.92, and the symmetric domain was found to have a value of 0.0747 whereas the full domain had a value of 0.236. Compared with the results from experiment (=0.302), the symmetric domain appears to give an underestimate for the pressure distribution at this position. In addition, the flow structures and properties in both domains differ, particularly in terms of the vortical structures generated by the sail and rudders. The simulation results for the full domain reveal that the flow around the SUBOFF model is asymmetric. The full domain was able to capture the flow structures in more detail than the symmetrical domain, and represented the velocity distribution at the propeller plane better. As a result, the full domain must be considered when carrying out propeller analysis and self-propulsion simulations.

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“…The experimental study determined that selecting the right material of manufacture for burner is important for moderating air pollutants from combustion of LPG and enhance air quality greatly. They found that the burners made of cast iron and brass have emission indices which satisfactory standard limit by International Organization for Standardization and other regulations [33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Effect of LPG Emission on the Performance of Glass Bending Furnace

Muhsin

Dhaher²,

Al-Fahham³

2023

ARFMTS

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The extant research design LPG give a good temperature distribution for a specific burner design of low consumption burners and relays to a method for bending the glass sheets, in which method the swirl burner LPG is used in a small furnace. Using LPG fuel gives more stability in the combustion process, the LPG is a gaseous fuel that helps to have easy control of the combustion rate and the temperature behavior inside the combustion zone by increasing and decreasing the mixing ratio with air. The heat flux from the flame moves in the front direction due to the momentum of the fuel mixture and the design of the burner rim, which keep the flow adhesive, such behavior leads to creating different temperature zone since the combustion process is a continuous process. The main result is that clean or low emission combustion of LPG fuel will increase the gained temperature and give a good temperature distribution for a specific burner design of low consumption burners and the clean combustion will reduce the unwanted deformation of soot on melting glass surface. Generally, high energy cost and the environmental pollution are the major issues in the glass industries which must be reduced through reduce the fuel consumption of the glass furnaces. For these reasons, this type of furnace can be used in other applications, not only in melting glass.

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CFD Simulation Model for Optimum Design of B-Series Propeller using Multiple Reference Frame (MRF)

Cited by 10 publications

References 14 publications

A Study of the Thermal Behavior of Some Materials Used to Prevent Corrosion in Mechanical Parts

A Study of the Thermal Behavior of Some Materials Used to Prevent Corrosion in Mechanical Parts

Influence of Full and Symmetrical Domains on the Numerical Flow around a SUBOFF Submarine Model using OpenFOAM

Effect of LPG Emission on the Performance of Glass Bending Furnace

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