**Research**

**Research**

**
Research Interest:**

Applied
and fundamental areas of **Aerospace Engineering**, using **
analytical**, **numerical**, and **experimental** methods. The
research activities can be categorized in **three** areas:

· Flight dynamics and control in atmosphere and space; including aerodynamics and aerodynamic heating.

· Modeling and simulation of AE systems, including control and optimization and reliability of aircraft maintenance.

Interdisciplinary problems in Aerospace Engineering and other areas (AE Education, Laser application in materials, system and energy modeling and other).

**Publications:**

(1) **A. Z. Al-Garni**, “Analytical Solution
for Controls, Heats and States of Flight Trajectories,” ** AIAA -
Journal of Spacecraft and Rockets**, Vol. 31, No. 5 (1994),
pp.924-928 (Technical Note) (

*1414 H*).

(2) A. Z. Sahin, B. S. Yilbas, and **A. Z.
Al-Garni**, “Transient Heat Conduction in a Slab During Direct
Resistance and Induction Heating,” ** International Communication in
Heat and Mass Transfer Journal**, Vol. 21, No. 2 (1994),
pp.199-206 (

*1414 H*).

(3)** A. Z. Al-Garni**, S.M. Zubair, and J. S.
Nizami, “A Regression Model for Electric Energy Consumption Forecasting
in Eastern Saudi Arabia,” ** Energy - The International Journal**,
Vol. 19, No. 10 (1994), pp.1043-1049 (

*1414 H*).

(4) **A. Z. Al-Garni**, A. Z. Sahin, B. S.
Yilbas, and S. A. Ahmed, “Cooling of Aerospace Plane Using Liquid
Hydrogen and Methane,” ** AIAA - Journal of Aircraft**, Vol.
32, No. 3 (1995),pp.539-546 (

*1415 H*).

(5) B. S. Yilbas, A. Z. Sahin, N. Kahraman, and
**A. Z. Al-Garni**, “Friction Welding of St-Al and Al-Cu Materials,”
** Journal of Materials Processing Technology**, Vol. 49
(1995), pp.431-443 (

*1415 H*).

(6) S. A. Ahmed, A. S. Nejad, and **A. Z.
Al-Garni**, “A Comparative Study of the Effects of LDV Velocity Bias
in the Near Field of a Turbulent Free Jet,” ** Canadian Aeronautics
and Space Journal**, Vol. 41, No. 4 (1995), pp.179-184 (

*1415 H*).

(7) **A. Z. Al-Garni**, K. A. F. Moustafa, and
S. S. A. K. J. Nizami, “Optimal Control of Overhead Cranes,” *
Control Engineering Practice** (A Journal of IFAC - The
International Federation of Automatic Control Engineering)*, Vol. 3,
No. 9 (1995), pp.1277-1284 (*1415 H*).

(8) S. S. A. K. Javeed Nizami, and **A. Z.
Al-Garni**, “Forecasting Electric Energy Consumption Using Neural
Networks,” ** Energy Policy**, Vol. 23, No. 12 (1995),
pp.1097-1104 (

*1415H*).

(9) **A. Z. Al-Garni**, and A. Z. Sahin,
“Designing a Cooling System for an Aerospace Plane Using H_{2},
CH_{4}, NH_{3},
Kr and Xe,” ** Canadian Aeronautics and Space Journal**, Vol.
41, No. 4 (1995), 193-201 (

*1415 H*).

(10) **A. Z. Al-Garni**, and J. B. Barlow,
“Aerospace Plane Ascending Trajectories with Heat Consideration,” **
IMechE - Part G: Journal of Aerospace Engineering**, Vol. 210
(1996), pp.231-245 (

*1416H*).

(11) A. Z. Sahin, B. S. Yilbas, and **A. Z.
Al-Garni**, “Friction Welding of Al-Al, Al-Steel, and Steel-Steel
Samples,” ** Journal of Materials Engineering and Performance**,
Vol. 5, No. 1 (1996), pp.89-99 (

*1416H*).

(12) **A. Z. Al-Garni**, A. Z. Sahin, and B. S.
Yilbas, “Active Cooling of a Hypersonic Plane Using Hydrogen, Methane,
Oxygen and Fluorine,” ** IMechE - Part G: Journal of Aerospace
Engineering**, Vol. 210 (1996), pp.9-17 (

*1416H*).

(13) B. S. Yilbas, A. Z. Sahin, **A. Z. Al-Garni**,
S. A. M. Said, Z. Ahmad, B. J. Abdul Aleem, and M. Sami, “Plasma
Nitriding of Ti-6 Al-4 V Alloy to Improve Some Tribological Properties,”
** Surface and Coatings Technology**, Vol. 80, No. 3 (1996),
pp.287-292 (

*1416H*).

(14) **A. Z. Al-Garni**, “Comparison of H_{2},
CH_{4} and H_{2}O
for Cooling Aerospace Planes,” ** International Journal of Hydrogen
Energy**, Vol. 21, No. 3 (1996), pp.229-237 (

*1416H*).

(15) A. K. Sheikh, **A. Z. Al-Garni**, and M. A.
Bader, “Reliability Analysis of Airplane Tires,” ** International
Journal of Quality and Reliability Management**, Vol. 13, No. 8
(1996), pp.28-38 (

*1416H*).

(16) S. A. Ahmed, A. S. Nejad, and **A. Z.
Al-Garni**, “Near-Field Study of a Turbulent Free jet and Velocity
Bias Effects,” ** AIAA - Journal of Propulsion and Power**,
Vol. 12, No. 1 (1996), pp.155-157 (

*1416H*).

(17) **A. Z. Al-Garni**, “Closed-Form Control
and State Solutions for Flight with Equality Constraints,” **
Transactions of the Japan Society for Aeronautical and Space Sciences**
(Journal), Vol. 39, No. 124 (1996), pp.231-247 (

*1416H*).

(18) B. S. Yilbas, **A. Z. Al-Garni**, and A. Z.
Sahin, “Study into a Small Scale Water Driven Domestic heat Pump: Design
and Performance Analysis,” ** Energy Sources** (Journal), Vol.
18, No. 8 (1996), pp.951-963 (

*1416H*).

(19) B. S. Yilbas and **A. Z. Al-Garni**, “Some
Aspects of Laser Heating of Engineering Materials,” ** Journal of
Laser Applications**, 8(4) (1996), pp.197-204 (

*1416H*).

(20) **A. Z. Al-Garni**, “Aerospace Plane
Cooling with H_{2},
CH_{4}, He, Ne, N_{2}
and Ar,” ** AIAA - Journal of Thermo physics and Heat Transfer**,
Vol. 39, No. 16 (1996), pp.3431-3439 (

*1416H*).

(21) S. M. Zubair, **A. Z. Al-Garni**, and J. S.
Nizami, “The Optimal Dimensions of Circular Fins with Variable Profile
and Temperature-Dependent Thermal Conductivity,” ** International
Journal of Heat Mass Transfer**, Vol. 39, No. 16 (1996),
pp.3431-3439 (

*1416H*).

(22) **A. Z. Al-Garni**, “Comparison of Aircraft
Tire Replacement Policy at Saudi Aviation Facility to the International
standards,” ** Journal of Quality in Maintenance Engineering**,
Vol. 2, No. 4 (1996), pp.71-80 (

*1416H*).

(23) **A. Z. Al-Garni**, Y. N. Al-Nassar, S. M.
Zubair, and A. Al-Shehri, “Model for Electric Energy Consumption in
Eastern Saudi Arabia,” ** Energy Sources**, Vol. 19, No. 4
(1997), pp.325-334 (

*1417H*).

(24) **A. Z. Al-Garni**, A. Z. Sahin, and A. A.
Al-Farayedhi, “A Reliability Study of Fokker F-27 Airplane Brakes,” **
Reliability Engineering and System Safety** (Journal affiliated
with ASME), Vol. 56, No. 2 (1997), pp.143-150 (

*1417H*).

(25) R. E. Abdel-Aal, **A. Z. Al-Garni**, and Y.
N. Al-Nassar, “Modeling and Forecasting Monthly Electric Energy in
Eastern Saudi Arabia Using Abductive Networks,” ** Energy - The
International Journal**, Vol. 22, No. 9 (1997), pp.911-921 (

*1417 H*).

(26) **A. Z. Al-Garni**, “Neural Network-Based
Failure Rate for Boeing-737 Tires,” ** AIAA - Journal of Aircraft**,
Vol. 34, No. 6 (1997), pp.771-777 (

*1417H*).

(27) R. E. Abdel-Aal, and **A. Z. Al-Garni**,
“Forecasting Monthly Electric Energy Consumption in Eastern Saudi Arabia
Using Univariate Time-Series Analysis,” ** Energy - The International
Journal**, Vol. 22, No. 9 (1997), pp.1059-1069 (

*1417H*).

(28) **A. Z. Al-Garni**, “Closed-Form Solutions
for Flight Vehicles with High Thrust Angle,” ** Canadian Aeronautics
and Space Journal**, Vol. 43, No. 3 (1997), pp.160-168 (

*1417H*).

(29) A. Z. Sahin, and **A. Z. Al-Garni**,
“Transient Temperature Analysis of Airplane Carbon Composite Disk
Brakes,” ** AIAA - Journal of Thermo physics and Heat Transfer**,
Vol. 12, No. 2 (1997), pp.283-285. (Technical Note) (

*1417H*)

(30) **A. Z. Al-Garni**, “Hawle Elm Al-Harakah
va Al-Taqueem ... (Arabic, which means: In Science of Motion, Timing and
Calendar),” ** Journal of Imam Muhammad Ibn Saudi Islamic University**,
No. 20 (1998), pp.533-564. (In Arabic) (

*1418H*).

(31) **A. Z. Al-Garni**, S. A. Ahmed, and M.
Siddique, “Modeling Failure Rate for Fokker F-27 Tires Using Neural
Network,” ** Transactions of the Japan Society for Aeronautical and
Space Sciences**, Vol. 41, No. 131 (1998), pp.29-37 (

*1418H*).

(32) **A. Z. Al-Garni**, A. Z. Sahin, A.
Al-Ghamdi, and S. A. Al-Kaabi, “Reliability Analysis of Airplane
Brakes,” ** Quality and Reliability Engineering International**,
Vol. 15 (1999), pp.143-150 (

*1419H*).

(33) S. A. Ahmed, and **A. Z. Al-Garni**,
“Budgets of Turbulent Kinetic Energy in an Abruptly Expanding Circular
Duct,” ** Transactions of the Japan Society for Aeronautical and
Space Sciences**, Vol. 42, No. 135 (1999), pp.1-8 (

*1419H*).

(34) **A. Z. Al-Garni**, A. Z. Sahin, and A. A.
Al-Farayedhi, “Modeling of Weather Characteristics and Wind Power in the
Eastern Saudi Arabia,” ** International Journal of Energy Research**,
23 (1999), pp.805-812 (

*1419H)*.

(35) A. Kharab, and **A. Z. Al-Garni**, “Use of
a Spreadsheet Program in Aerospace Plane Trajectory,” ** IASTED -
International Journal of Modeling and Simulation**, Vol. 19, No.
3, (1999) (

*1419H*).

(36) S. A. Ahmed, **A. Z. Al-Garni**, and K. B.
Abidogun, “The Flow Field Characteristics of a Confined Highly Swirling
Turbulent Flow,” ** Canadian Aeronautics and Space Journal**,
Vol. 45, No. 4 (1999), pp.323-334 (

*1420H*).

(37) A. M. Al-Qutub, and **A. Z. Al-Garni**,
“Comparison Between Neural Network and Weibull Models for Failure of
Boeing 737 Engines,” ** Transactions of the Japan Society for
Aeronautics and Space Sciences**, Vol. 42, No. 137 (1999),
pp.128-134 (

*1420H*).

(38) A. Z. Sahin, **A. Z. Al-Garni**, M. Sunar,
and R. Kahraman, “Thermal Analysis of Antiskid Aircraft Brake System,”
** Transactions of the Japan Society for Aeronautical and Space
Sciences**, Vol. 42, No. 138 (2000), pp.153-158 (

*1421H*).

(39) **A. Z. Al-Garni**, A. M. Al-Garni, S. A.
Ahmed, and A. Z. Sahin, “Flow Control for an Airfoil having Leading-Edge
Rotation: An Experimental Study,” ** AIAA - Journal of Aircraft**,
Vol. 37, No. 4 (2000), pp.617-622 (

*1421H*).

(40) Y. N. Al-Nassar, M. Siddique, and **A. Z.
Al-Garni**, “Artificial Neural Networks in Vibration Control of Rotor
Bearing Systems,” ** Simulation Practice and Theory**, 7
(2000), pp.729-740 (

*1421H*).

(41) A. Z. Sahin, S. M. Zubair, **A. Z. Al-Garni**,
and R. Kahraman, “Effect of Fouling on the Operational Cost in Pipe Flow
Due to Entropy generation,” ** Energy Conversion and Management**,
41 (2000), pp.1485-1496 (

*1421H*).

(42) A. Z. Sahin, **A. Z. Al-Garni**, and A. A.
Al-Farayedhi, “Analysis of a Small Horizontal Axis Wind Turbine
Performance,” accepted by ** International Journal of Energy Research**
(2000) (

*1421H*).

(43) **A. Z. Al-Garni**, S.A. Ahmed, A. Z. Sahin
and A. M. Al-Garni, “Experimental study of a 65 degree-delta wing with
different pitching rates”, ** Canadian Aeronautics and Space Journal,**
Vol. 47, No. 2, June 2001G (

*1422H*), pp. 85-93.

(44) M. Sunar, **A. Z. Al-Garni**, M. H. Ali, and
R. Kahraman, “Finite Element Modeling of Thermo-piezomagnetic Smart
Structures,” ** AIAA - Journal**, Vol. 40, No. 9, Sept. 2002G
(1423H). (

**)**

__DOWNLOAD__

(45) A. Z. Sahin and **A. Z. Al-Garni**,
“Environmental Impact of Hydrogen Energy Use”, ** Renewable
Energy-UNESCO, **2003G (

*1424H*), pp. 93-95.

(46) F., Saeed, and **A. Z. Al-Garni,** “Impact
of Floating-Point Arithmetic on Engineering Numerical Analysis”, **
ARA Journal,** Vol. 2004, No. 28, June 2005G (1426H).

(47) **A. Z. Al-Garni, **A. Jamal, A.M. Ahmad,
A.M., Al-Garni, and M. Tozan, “Neural Network-Based Failure Rate
Prediction for De Havilland Dash-8 Tires”, ** Elsevier Engineering
Applications of Artificial Intelligence**, Vol.19, March 2006G
(1427H), pp.681-691.

(48) **A. Z. Al-Garni**, A. Jamal, A. Maqsood,
A. M. Al-Garni and M. Tozan, “Failure Rate Prediction for De Havilland
Dash-8 Tires Employing Neural Network Technique,” ** AIAA Journal of
Aircraft**, Vol. 43, No. 2, 2006G (1427H), pp. 537-543. (

**)**

__DOWNLOAD__

(49) M. Tozan,** A. Z. Al-Garni**, A. M.
Al-Garni and A. Jamal,, “Failure Distribution Modeling for Planned
Replacement of Aircraft Auxiliary power Unit Oil Pumps,” **
Maintenance Journal**, Vol. 19, No. 1, 2006G (

*1427H*), pp. 60-69.

(50) Saeed, F., and **A. Z. Al-Garni**, “An
Analysis Method for Inertial Particle Separator”, *The***
AIAA Journal of Aircraft**, Vol.44, No.4, July-Aug. 2007G
(1428H), pp.1150-1158. (

**)**

__DOWNLOAD__

(51) **A. Z. Al-Garni, **M. Tozan, A.M.,
Al-Garni, and** **A. Jamal, “Failure Forecasting of Aircraft
Air-Condition/Cooling Pack with Field Data”, *The***
AIAA Journal of Aircraft**, Vol. 44, No. 3, 2007G (1428H), pp.
966-1002. (

**)**

__DOWNLOAD__

(52) **A. Z. Al-Garni, **and** **A. Kassem,
“On the Optimization of Aerospace Plane Ascent Trajectory,” **
Transaction of the Japan Society for Aeronautical & Space Sciences**,
Vol. 50, No. 168, Aug. 2007G (1428H).

(53)** **
**A. Z. Al-Garni**, F., Saeed, and A.M.,
Al-Garni, “Experimental and Numerical Investigation of 65-deg Delta and
65/40-deg Double-Delta Wings”, *The*** AIAA Journal of
Aircraft**, Vol. 45, No.1, Jan-Feb. 2008G (1429H), pp. 71-76. (

**)**

__DOWNLOAD__

(54)**
****A. Z. Al-Garni**, A. Jamal, F. Saeed, and
A. Kassem, “Failure Rate Analysis of Boeing 737 Brakes Employing Neural
Network,” ** International Journal of Reliability, Quality & Safety
Engineering, **submitted for publication.

(55) A. Saad, A. Z. Sahin, and **A. Al-Garni**,
“Measurements in the radial vaneless diffuser of a centrifugal blower”,**
Transactions of the Japan Society for Aeronautical and Space Sciences,**
submitted for publication.

(56) **A. Z. Al-Garni**, “Comparison between
Neural Network and Polynomial Fit in Forecasting Passenger Air-Traffic,”
** Operational Research Society**, submitted for publication.

(57) **A. Z. Al-Garni**, “A Comparable Aerospace
Engineering Program,” ** The International Journal of Mechanical
Engineering Education**, submitted for publication.

(58) **
A. Z. Al-Garni**,
Tuzan, M, and Abdelrahman, W. G, “Graphical Techniques for Managing
Field Failures of Aircraft Systems and Components,” ** AIAA Journal
of Aircraft**, Vol. 46, No. 2, (2009), pp. 608-616, (

*1430H*).

(59) **
A. Z. Al-Garni**
and Ahmad Jamal *“*Artificial Neural Network Application of
Modeling Failure Rate for Boeing 737 Tires”** , Quality & Reliability
Engineering International USA**, DOI: 10.1002/qre.1114, 2010 (

*1431H*).

(60)
**A. Z. Al-Garn**i,
Tozan M and Abdulrehman, W.G., “Managing Field Failures of Aircraft
Systems by Co-application of Parametric and Non-parametric Methods”, **
Journal of Aircraft**, Vol.
48, No. 2, pp.468-475, 2011

*(1432H)*