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Research Article

Investigation of Main Injection Quantity Fluctuation due to Pilot Injection in High Pressure Common Rail Fuel Injection System

numerical model of HPCR system has been development in AMESim environment. Predicting accuracy of the numerical model has been validated by comparing its results with experimental data. The results show that the pilot injection triggers pressure cyclical fluctuation in the electro-injection delivery chamber and gives rise to MIQF. Amplitude of MIQF decreases with increase of PMI and increase with increase of PIQ. Moreover, variation of PIQ has also influence on both the amplitude and the phase of MIQF

Tian Bingqi, Fan Liyun, Ma Xiuzhen, Qaisar Hayat, Bai Yun, Liu Yang

International Journal on Smart Sensing and Intelligent Systems , ISSUE 2, 820–836

Article

Discussion on the Factors of Stability for Benchmark Example with a Spherical Failure Surface in Clay

. This paper compares and analyzes the results of the existing research literature. And the three analytical expressions under the three kinds of rotational model have been given for the factors of safety. In practice, the value of factor of stability obtained by numerical model should be in a range which is determined by rotational model of failure body. In this paper, when subtended angel is equal to 60°, the value of factor of stability obtained by numerical model for benchmark example should

Jinhui Liu, Wantao Ding

International Journal of Advanced Network, Monitoring and Controls , ISSUE 3, 49–53

research-article

NUMERICAL STUDIES ON THE NATURAL SMOKE VENTING OF ATRIA

efficiency. The wind influence is considered above all [14–16]. Although FDS has undergone many validation analyzes, after building a new building model it is beneficial to subject it to validation based on real measurements. The paper presents numerical analyzes made using the FDS program. The aim of the analysis was to match the numerical model to the results obtained in the real atrium building. For the validation of the numerical model, the results of the temperature distribution in the atrium

Karolina ŻYDEK, Małgorzata KRÓL

Architecture, Civil Engineering, Environment , ISSUE 4, 135–144

Research Article

An Agent-Based Metapopulation Model Simulating Virus-Based Biocontrol of Heterodera Glycines

Safyre Anderson, Chinmay Soman, Sadia Bekal, Leslie Domier, Kris Lambert, Kaustubh Bhalerao

Journal of Nematology , ISSUE 2, 79–90

Article

Mechanical And Thermal Stresses Anylsis In Diesel Engine Poiston With And Without Different Thermal Coating Layer On Piston Head

The main goal of this paper are equate behavior of the piston with and without different thermal coating layer on the piston head under thermal and mechanical loads that arise in the piston due to its operating. Three dimensional model of a piston heavy diesel engine has been presented. The governing equations have been discretized using a finite-volume method (FVM) and solved using multi-physics COMSOL package version 5. The results of the numerical model are showing the distribution of

Nabeel Abdulhadi Ghyadh, Maher A.R. Sadiq Al-Baghdadi, Sahib Shihab Ahmed

International Journal of Advanced Network, Monitoring and Controls , ISSUE 2, 96–111

Research Article

Numerical analysis of ultrasonic guided waves propagation in highly attenuative viscoelastic material

The propagation of ultrasonic guided waves in viscoelastic isotropic material has been investigated. Based on the plane theory, a numerical model of the guided waves propagating is developed in the frequency domain by employing the SFEM (spectral finite element method). To verify the proposed method, thin bitumen on the steel substrate is examined and compared with the single plate in terms of the dispersion and attenuation. From the dispersion and attenuation of the displacement curves, the

Li Hong, Wang Qingfeng

International Journal on Smart Sensing and Intelligent Systems , ISSUE 5, 1–6

Research Article

A BROADBAND SPECTROSCOPIC SENSOR PROBE

reference liquid, ideally chosen for a permittivity similar to that of the sample. The sample complex permittivity was calculated by a numerical model which used as inputs, the measured reflection coefficient and physical measurements of the probe geometry.

I M Woodhead, I Platt, J H Christie, S Krenek

International Journal on Smart Sensing and Intelligent Systems , ISSUE 2, 459–469

research-article

PRELIMINARY STUDIES OF VERTICAL ACCELERATION OF A PASSENGER CAR PASSING THROUGH THE SPEED BUMP FOR VARIOUS DRIVING SPEEDS

Tomasz HANISZEWSKI, Agata MICHTA

Transport Problems , ISSUE 1, 23–34

Article

COMPARATIVE STUDY OF PRESSURE WAVE MATHEMATICAL MODELS FOR HP FUEL PIPELINE OF CEUP AT VARIOUS OPERATING CONDITIONS

. Lab experiments have been conducted to measure the pump side and injector side pressures by using KISTLER 4067 piezoresistive pressure sensors under controlled environment. Each model has been verified by comparing its simulated results with those of experimentally verified AMESim numerical model of CEUP system. Model evaluation statistical techniques like “Root Mean Square Error” (RMSE) and “Index of Agreement” (IA) have been used to quantify the predicted results of

Qaisar Hayat, Fan Li-Yun, Xiu-Zhen Ma, Tian Bingqi

International Journal on Smart Sensing and Intelligent Systems , ISSUE 3, 1077–1101

Article

FEM ANALYSIS OF CORRUGATED WEB GIRDERS REINFORCED WITH TENSIONED DIAGONAL BRACES 

thickness. FEM analysis of the shear resistance of corrugated web girders was performed using numerical models of girders. The webs, made from corrugated sheet, had the heights of 500, 1000 and 1500 mm, and the thicknesses of 2; 2.5 and 3 mm. Global shear and flexural load-displacement paths (LDPs) were determined for girder numerical models. In shear LDPs, the shares of cooperation between the corrugated web and tension diagonal braces were separated. For each numerical model, the estimates of the

Witold BASIŃSKI, Zbigniew KOWAL

Architecture, Civil Engineering, Environment , ISSUE 1, 65–78

Article

VIBRATION PROPAGATION IN SUBSOIL: IN-SITU TESTING AND NUMERICAL ANALYSES

This paper presents results obtained with the use of accelerometers during in-situ testing and its comparing with results from numerical simulations. Horizontal accelerations of propagating impulses caused by driving the prefabricated piles were recorded. Range of the quakes as well as amplitudes of longitudinal and transverse horizontal accelerations of propagating vibrations on the terrain surface were determined. The recorded results were used to calibrate the numerical model of the finite

Stefan PRADELOK, Marian ŁUPIEŻOWIEC

Architecture, Civil Engineering, Environment , ISSUE 1, 79–86

research-article

NUMERICAL MODELLING OF UNDERVENTILATED FIRE IN A COMPARTMENT

, and concentrations every 0.5 m. Table 1. Considered cases Air inlet Case 1 inlet A Case 2 inlet A, B Case 3 inlet A, B, C 4. NUMERICAL MODEL OF THE COMPARTMENT 4.1. Numerical modeling of combustion processes The process of combustion which includes chemical reactions between the components of the fuel and the oxidant with the formation of various intermediate and final products and the release of large amounts of energy is a very complex phenomenon. This is why some

Małgorzata KRÓL, Aleksander KRÓL

Architecture, Civil Engineering, Environment , ISSUE 2, 115–123

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