Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions
Now showing items 41-60 of 1036
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Article
Development of a computational optimisation system to determine constitutive equation constants for metal alloys
(2019)Simulations of metal forming processes typically use constitutive equations to describe material properties over a wide range of temperatures and strain rates. Classically, determining a set of values for the large number ...
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Article
AFM assessing of nanomechanical fingerprints for cancer early diagnosis and classification: from single cell to tissue level
(2018)Cancer development and progression are closely associated with changes both in the mechano-cellular phenotype of cancer and stromal cells and in the extracellular matrix (ECM) structure, composition, and mechanics. In this ...
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Article
In-silico dynamic analysis of cytotoxic drug administration to solid tumours: Effect of binding affinity and vessel permeability
(2018)The delivery of blood-borne therapeutic agents to solid tumours depends on a broad range of biophysical factors. We present a novel multiscale, multiphysics, in-silico modelling framework that encompasses dynamic tumour ...
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Article
A discussion regarding the approximation of cylindrical and spherical shaped samples as half spaces in AFM nanoindentation experiments
(2018)A common assumption of nanoidentation experiments is to consider the sample as an elastic half space due to the simplicity of the analysis regarding the Young’s modulus calculation. However, in the nano—dimensions a sample ...
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Article
Transforming growth factor-β modulates pancreatic cancer associated fibroblasts cell shape, stiffness and invasion
(2018)Background Tumor microenvironment consists of the extracellular matrix (ECM), stromal cells, such as fibroblasts (FBs) and cancer associated fibroblasts (CAFs), and a myriad of soluble factors. In many tumor types, including ...
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Article
Stress alleviation strategy in cancer treatment: Insights from a mathematical model
(2018)Tumors generate mechanical forces during growth and progression, which are able to compress blood and lymphatic vessels, reducing perfusion rates and creating hypoxia. Tumor vessels—while nourishing the tumor—are usually ...
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Article
An analysis of the tooth stress distribution of forged bi-metallic gears
(2018)The work described in this paper is an evaluation of the contact characteristics of bi-metallic gears forged through a novel bi-metallic gear forging process. Finite element analysis of the contact characteristics of single ...
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Article
Variable property DNS of differentially heated cavities filled with air
(2020)Direct numerical simulations (DNS) of the thermally-driven flow of air inside differentially heated cavities (DHC) are presented. The variation of air properties is taken into account using the low-Mach approximation, to ...
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Article
Effect of hydrodynamic forces on sandy sediments in oscillatory boundary layer flow
(2019)In the present work, the forces exerted on spherical sand particles by oscillatory boundary layer flows at Re=25,000 and Re=55,000 are examined by means of Large Eddy Simulations. The particles move within the carrier fluid ...
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Article
1D model for the energy yield calculation of natural convection solar air collectors
(2018)A one dimensional model has been developed and presented to calculate the seasonal energy yield of solar air collectors. This model takes into account local meteorological conditions, the effects of geometrical configuration, ...
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Article
A new finite element formulation for viscoelastic flows: Circumventing simultaneously the LBB condition and the high-Weissenberg number problem
(2019)In this paper, we propose a new, fully consistent and highly stable finite element formulation for the simulation of viscoelastic flows. In our method, we have implemented equal order interpolants for all variables and a ...
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Article
Theoretical study of the flow in a fluid damper containing high viscosity silicone oil: Effects of shear-thinning and viscoelasticity
(2018)The flow inside a fluid damper where a piston reciprocates sinusoidally inside an outer casing containing high-viscosity silicone oil is simulated using a finite volume method, at various excitation frequencies. The oil ...
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Article
Direct numerical simulations of Rayleigh–Bénard convection in water with non-Oberbeck–Boussinesq effects
(2019)Rayleigh–Bénard convection in water is studied by means of direct numerical simulations, taking into account the variation of properties. The simulations considered a three-dimensional (3-D) cavity with a square cross-section ...
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Conference Object
Tapering analysis of airways with bronchiectasis
(International Society for Optics and Photonics, 2018)Bronchiectasis is the permanent dilation of airways. Patients with the disease can suffer recurrent exacerbations, reducing their quality of life. The gold standard to diagnose and monitor bronchiectasis is accomplished ...
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Conference Object
Buoyancy-driven flow inside an asymmetrically heated cavity
(Springer International Publishing AG, 2019)Buoyancy-driven flows inside enclosures are in the center of problems related to heat transfer because they can provide a significant insight into the physical mechanisms of heat transfer. Typical examples of such flows ...
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Article
An efficient Navier-Stokes based numerical wave tank using fast Poisson solvers and the immersed boundary method
(2020)An efficient numerical model for wave induced flows and their interaction with impermeable coastal structures, is presented. Using recent developments in the field of two-fluid (water/air) Navier-Stokes (NS) simulations, ...
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Conference Object
Initiating Structure and Consideration Leadership–Creativity and Innovation Relationships: The Cypriot and the United Arab Emirates Experience
(Academic Conferences and publishing limited, 2018)
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Conference Object
Efficient Pressure-Correction Method for Interfacial Tracking Appropriate for the Immersed Boundary Method
(Springer International Publishing, 2019)Solving the Navier–Stokes equations to simulate incompressible two-fluid flows with interfaces, is still a developing scientific field. One of the main challenges, is the reduction of the computational cost which is still ...
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Conference Object
Buoyancy-driven flows using the Low-Mach approximation
(Springer, 2019)