Hydraulic systems

This study focuses on examining the near-shore coastal current along the Soc Trang Province coast in Vietnam, considering the combined influences of waves, winds, and tides by utilizing a model in curvilinear coordinate system.

18p vibecca 01-10-2024 3 1   Download

The study on assessing the impacts of saline intrusion on water resources, from building a hydraulic model MIKE 11 including hydraulic model, rain model, and advection–dispersion module (HD + RR + AD) together with the calculation scenarios in consideration of climate change through the high scenarios RCP 8.5 and low scenarios RCP 4.5 in 2025, 2030 and 2050 are highlighted in the paper.

13p viyoko 01-10-2024 5 0   Download

This article employs the finite element method (FEM) to evaluate the local hydraulic losses in complex geometries discretized by unstructured mesh. The method is applied to the laminar flow of Newtonian fluid.

14p viyoko 01-10-2024 3 0   Download

The main purpose of the study was (i) to evaluate the effect of nitrogen treatment on domestic effluent of the model system, (ii) to determine the appropriate water retention time of the system.

10p vifilm 24-09-2024 1 1   Download

The elasto-plastic characteristics of plain concrete are inevitably affected by the loading rate. This paper presents an experimental investigation on the effect of loading rate on flexural behavior of concrete and reinforced concrete (RC) beams, which was carried out with Walter+bai electro-hydraulic servo system.

8p vifilm 24-09-2024 1 1   Download

This study has established and calibrated a three-dimensional system model with a combination of hydraulics-waves and suspended sediment transport with measured data in the study area. Based on the calculated scenarios for the flood and the dry seasons, the results show the occurrence of MTZs in the riparian zone of the Mekong river with typical suspended sediment concentrations (SSC) ranging from 0.04–1.0 kg/m3 dry season and 0.2–1.1 kg/m3 flood season.

18p dianmotminh02 03-05-2024 5 2   Download

It is essential to get information on clayey layers, which may play a significant role in protecting shallow aquifers thanks to their low hydraulic conductivity from surface contamination. One of the simple geophysical instruments is EM34 which applies the electromagnetic principle to read directly and quickly the apparent electrical conductivity of the subsurface.

6p vivacation2711 23-10-2021 20 1   Download

Objects and range of research: Assessing the impacts of irrigation-hydropower construction system on some hydrologyhydraulic factors at downstream of Huong river from reservoirs to Thao Long dam with climate change calculated to the year of 2030.

27p dolphintaletale 23-04-2021 30 8   Download

One of the easiest and efficient way of water conservation to solve drinking water scarcity is rooftop water harvesting. To evaluate the performance of the first flush with micromesh filter system, inflow and outflow of the rooftop water samples were analysed for pH, EC, TDS, SAL and TSS parameters. In general, the PH, electrical conductivity, and TDS of the roof water samples were within the drinking water standards and the first flush with micromesh filter system was found to reduce TDS values.

9p chauchaungayxua6 26-06-2020 15 2   Download

In this paper, we propose an analysis of the impact of spatial variation and temporal evolution of thermal properties of fuel pins on a CFV-like core behavior during an ULOF accident. These effects are usually neglected under some a priori conservative assumptions.

8p christabelhuynh 30-05-2020 11 1   Download

The purpose of this paper is to model the operation of the Shutdown Cooling System (SDCS) for CANDU 6 nuclear power plants in case of LOCA accidents, using Flowmaster calculation code, by delimiting models and setting calculation assumptions, input data for hydraulic analysis and input data for calculating thermal performance check for heat exchangers that are part of this system.

7p christabelhuynh 31-05-2020 17 1   Download

This paper will present the progress in the project with respect to liquid metal cooled reactor thermal-hydraulics (liquid metal heat transfer, fuel assembly thermal-hydraulics, pool thermal-hydraulics, and system thermal-hydraulics).

8p christabelhuynh 29-05-2020 10 2   Download

The main objective of nuclear reactor safety is to maintain the nuclear fuel in a thermally safe condition with enough safety margins during normal operation and anticipated operational occurrences. In this research, core flow bypass is studied under the conditions of the unavailability of safety systems. As core bypass occurs, the core flow rate is assumed to decrease exponentially with a time constant of 25 s to new steady state values of 20, 40, 60, and 80% of the nominal core flow rate.

6p minhxaminhyeu3 12-06-2019 19 2   Download

Research objectives: To find scientific solutions for urban drainage issues and to improve river and pipe hydraulic coupling model for suitable urban application under specific conditions of strong tidal impact, heavy rainfall and rapid urbanization in Viet Nam.

25p change03 06-05-2016 39 2   Download

Service standard, tightening torque, lubrications, special tools, components, clutch cover and disc, hydraulic clutch linkage arrangement,... As the main contents of the document "Clutch system". Invite you to consult

40p phatheodk 26-11-2015 65 5   Download

Acquaint participants with hydraulic system design principles for civil aircraft Review examples of hydraulic system architectures on common aircraft Review of Aircraft Motion Controls Uses for and sources of hydraulic power Key hydraulic system design drivers Safety standards for system design Hydraulic design philosophies for conventional, “more electric” and “all electric” architectures Hydraulic System Interfaces Sample aircraft hydraulic system block diagrams Conclusions

27p ngayduocbay 13-12-2012 80 10   Download

Average depth model has a variety of applications in hydraulic engineering, especially in applications that flow depth is much smaller than the width of the flow. In this method the vertical variation is negligible and the hydraulic variables average integrated from channel bed to the surface free for the vertical axis. in equations arising management, pure hydrostatic pressure is assumed that not really valid in the case of flow in the bed is curved and can not be described curvature effects of the bed.

127p gauhaman123 17-11-2011 104 15   Download

HỆ THỐNG THỦY LỰC 5.1 Tổng quan về hệ thống thủy lực Hệ thống thuỷ lực (Hydraulic systems) được sử dụng nhiều trong ngành chế tạo máy hiện đại và trong công nghiệp lắp ráp. Ngoài ra, công nghệ thuỷ lực còn được ứng dụng trong một số lĩnh vực đặc biệt khác như hàng hải, khai thác hầm mỏ, hàng không… Trong hệ thống thuỷ lực, chất lỏng có áp suất đóng vai trò trung gian truyền lực và chuyển động cho máy công nghệ. Quá trình biến đổi và truyền tải năng lượng được mô tả trên hình 5.1...

0p meogiay 15-11-2011 626 202   Download