On the influence of thermal phenomena during cavitation through an orifice

Esposito, Claudia; Peveroni, Laura; Gouriet, Jean‐Baptiste; Steelant, Johan; Vetrano, Maria Rosaria

doi:10.1016/j.ijheatmasstransfer.2020.120481

Cited by 13 publications

(4 citation statements)

References 35 publications

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“…In case of cryogenic fluid, the approximation P min ∼ P sat can fail, since the thermodynamic state strongly influences both the cavitation occurrence and its regime [8] and the fluid temperature varies during the phase change. Therefore, to correctly describe the phenomenon, two more parameters must be considered, i.e., the subcooling degree ∆T sub and the superheat R p :…”

Section: Statement Of the Problemmentioning

confidence: 99%

Impact of Cryogenics on Cavitation through an Orifice: A Review

2021

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Cryogenic cavitation affects the operation of liquid propulsion systems during the first phase of a launch. Its effects within orifices or turbopumps can range from mild instabilities to catastrophic damages to the structures, jeopardizing the launch itself. Therefore, to ensure the proper designing of propulsion systems, cavitation phenomena cannot be neglected. Although hydrodynamic cavitation has been studied for decades, the impact of the nature of the fluid has been sparsely investigated. Therefore, this review, beginning from the basic concepts of cavitation, analyzes the literature dedicated to hydrodynamic cryogenic cavitation through an orifice. Our review provides a clear vision of the state-of-the-art from experimental and modeling viewpoints, identifies the knowledge gaps in the literature, and proposes a way to further investigate cryogenic cavitation in aerospace science.

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Section: Statement Of the Problemmentioning

confidence: 99%

Impact of Cryogenics on Cavitation through an Orifice: A Review

2021

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“…However, it is more common in the literature to find publications analysing the issue of cavitation supported by experimental studies with the fluid flowing in the cylindrical orifice area for low or high-pressure values 28 , 29 .…”

Section: Introductionmentioning

confidence: 99%

Cylindrical orifice testing in laminar flow with the orifice diameter ratio β = 0.5

Golijanek-Jędrzejczyk,

Mrowiec

2023

Sci Rep

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The paper presents the results of an experimental study of a cylindrical orifice with the orifice diameter ratio β = 0.5 and the flow opening length-to-diameter ratio L/d = 1, with hydraulic oil flowing in the DN50 measuring channel. The measurements of the values characterising the oil flow were made in the laminar flow regime, for the Reynolds numbers ranging between Re = 100 to 950. Based on the experimental tests, standard flow characteristics were created for four kinematic viscosity values in the range of 13.4–33.3 cSt, for which the average value of the discharge coefficient C in the tested flow rate range of qv < 0.5 dm3/s was determined.

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“…Abbas et al found that the absorption coefficient of the drilling tool affected the cutting temperature by simulating the heat distribution of twist drill pipe drilling. When the cutting edge breaks hard rock, most of the cutting work is converted into cutting heat, resulting in a rapid increase in bit temperature . Srimaruthi et al systematically studied the influence of bit design parameters on cutting temperature and concluded that the bit screw angle, the drilling location, and lithology had a significant impact on the increase of temperature caused by the clog of the drain hole.…”

Section: Introductionmentioning

confidence: 99%

Temperature of the Core Tube Wall during Coring in Coal Seam: Experiment and Modeling

Wang

Yue

et al. 2022

ACS Omega

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Temperature is the primary factor affecting the law of coal gas desorption. When the core method is used to measure the coal seam gas content (CSGC), the temperature of the coal core sample (CCS) will increase because the heat generated by the core bit cutting and rubbing the coal is transferred to the CCS through the core tube. To solve the above problems, the temperature of the core tube wall during coring at core depths of 10, 20, and 30 m was measured by a self-designed temperature measuring device. The thermodynamic models of the core bit and the core tube during coring were established. The thermal flux of the system at different stages was inverted numerically by the dichotomy method. The reliability of the model was verified by comparing the numerical simulation results with the field measurement results. The main influencing factors during coring were studied by numerical simulations. The results show that the temperature change of the core tube wall goes through four stages: slowly rising, fast rising, slowly rising, and slowly falling, which correspond to the process of pushing the core tube, drilling the CCS, and the early stage and later stage of withdrawing the core tube, respectively. The maximum temperature of the core tube wall appears in the first 5 min of withdrawing the core tube and increases with the increase of core depth. When the core depth is 30 m, the maximum temperature of the core tube wall reaches 105.17 °C. The temperature of the measuring point at the end of drilling the CCS and the maximum temperature during coring linearly increase with the core depth, friction heat generated while pushing the core tube, and coal strength. This study can provide a basis for further research on the dynamic distribution characteristics of temperature in the CCS during coring, which is of profound significance to calculate the gas loss amount and CSGC.

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On the influence of thermal phenomena during cavitation through an orifice

Cited by 13 publications

References 35 publications

Impact of Cryogenics on Cavitation through an Orifice: A Review

Impact of Cryogenics on Cavitation through an Orifice: A Review

Cylindrical orifice testing in laminar flow with the orifice diameter ratio β = 0.5

Temperature of the Core Tube Wall during Coring in Coal Seam: Experiment and Modeling

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