Numerical studies of laminar and turbulent forced convection, permanent and stationary through a cylindrical pipe for the case of a heat exchanger and the case of a flat plat solar collector, the calculations are performed ...

Knowing the causes of material damage is a top priority for design engineers to avoid sudden breakage of equipment in service. One of the most important reasons for material failure is fatigue this phenomenon can be defined ...

Solar energy in combined cycle power plants are becoming important as an efficient option among conventional thermal power plants. Nowadays, a great amount of combined cycle gas turbine power plants have been installed ...

The objective of this doctoral thesis is to study the thermal and dynamic structures of the flow resulting from natural convection heat transfer within different practical geometries, applying the most recent methods used ...

In the field of machining, the cutting tools wear leads to a quality gradation of the machined workpiece, particularly in terms of surface state and geometric precision. So, it is important of disposing a criterion enabling ...

During the preparation of this thesis, we have developed two different methods for the diagnosis of rotating machine faults. The first method, presents a procedure for bearing degradation monitoring at an early stage. ...

Nowadays, the use of composite materials has taken a large place in civilian industries as well as in military and aerospace industries. In particular, composite structures with one or more attachments, such as different ...

The measurement on a coordinate measuring machine (CMM) is based on the technique of association an ideal surface to the set of palpated points via a mathematical optimization calculus in the sense of least squares. This ...

Internal structures in aeronautical, aircraft or space structures are composed of bar elements or lightweight beams assembled by welding, riveting or bolting of simple or complex geometric shapes. They are covered with ...

Maintenance is becoming increasingly important in companies and tends to evolve for reactivity and cost needs. A particular evolution concerns the way to apprehend the phenomena of failure: little by little the industrialists ...