"An Overview of the Pressurized Thermal Shock Issue in the Context of the NURESIM Project"@en . "15"^^ . . "An Overview of the Pressurized Thermal Shock Issue in the Context of the NURESIM Project" . "RIV/46356088:_____/09:#0000966" . "[A287722C5F25]" . "computational fluid dynamics; validation; Pressurized Thermal Shock; experiments"@en . . . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . . "1"^^ . . . "Science and Technology of Nuclear Installations" . . . . . . "An Overview of the Pressurized Thermal Shock Issue in the Context of the NURESIM Project"@en . "An Overview of the Pressurized Thermal Shock Issue in the Context of the NURESIM Project" . . . "302771" . "RIV/46356088:_____/09:#0000966!RIV11-MPO-46356088" . "13"^^ . "Within the European Project NURESIM, the simulation of PTS is investigated. Some accident scenarios for Pressurized Water Reactors may cause Emergency Core Coolant injection into the cold leg leading to PTS situations. They imply the formation of temperature gradients in the thick vessel walls with consequent localized stresses and the potential for propagation of possible flaws in the material. This paper focuses on two-phase conditions that are potentially at the origin of PTS. It summarizes recent advances in the understanding of the two-phase phenomena occurring within the nuclear reactor. Available experimental data for validation of two-phase CFD simulation tools are reviewed and the capabilities of such tools to capture each basic phenomenon are discussed. Conclusions show that several two-phase flow phenomena are involved and can individually be simulated at least at a qualitative level, but the capability to simulate their interaction and the overall system performance is still limited."@en . "1687-6075" . "Within the European Project NURESIM, the simulation of PTS is investigated. Some accident scenarios for Pressurized Water Reactors may cause Emergency Core Coolant injection into the cold leg leading to PTS situations. They imply the formation of temperature gradients in the thick vessel walls with consequent localized stresses and the potential for propagation of possible flaws in the material. This paper focuses on two-phase conditions that are potentially at the origin of PTS. It summarizes recent advances in the understanding of the two-phase phenomena occurring within the nuclear reactor. Available experimental data for validation of two-phase CFD simulation tools are reviewed and the capabilities of such tools to capture each basic phenomenon are discussed. Conclusions show that several two-phase flow phenomena are involved and can individually be simulated at least at a qualitative level, but the capability to simulate their interaction and the overall system performance is still limited." . "P(FT-TA3/071)" . . "Macek, Ji\u0159\u00ED" . "2009" . "2009" .